Free Sentence Completion MCQs with Answers

1. Complete the sentence: Although the treatment was expensive, it was ____ effective.

• A. therefore
• B. nevertheless
• C. similarly
• D. because

Explanation: Although already sets up a contrast, and nevertheless carries that contrast into the second half. Therefore would signal a result, which contradicts the concessive opening. Sentence completion questions are usually solved by identifying the logical signpost rather than by meaning alone.

2. Complete the sentence: The scientist's findings were so ____ that no one could dispute them.

• A. ambiguous
• B. conclusive
• C. tentative
• D. obscure

Explanation: If nobody can dispute the findings they must be decisive, which is what conclusive means. Ambiguous, tentative and obscure all point in the opposite direction and would invite dispute rather than end it. The words following so and that always define the quality needed.

3. Complete the sentence: Despite his ____ manner, he was in fact deeply insecure.

• A. timid
• B. confident
• C. hostile
• D. quiet

Explanation: Despite signals a contrast with deeply insecure, so the outward manner must be the opposite of insecurity, that is confident or assured. Timid and quiet would match insecurity rather than contrast with it. Reading the whole sentence before looking at the options prevents this error.

4. Complete the sentence: The new drug must undergo rigorous trials ____ it can be approved for public use.

• A. before
• B. after
• C. unless
• D. although

Explanation: Trials logically precede approval, so before is the only connector that puts the two events in the right order. After reverses the sequence and unless would make approval the default. Time relationships are as much a part of these questions as meaning.

5. Complete the sentence: The results were inconclusive; ____, further research is needed.

• A. however
• B. therefore
• C. in contrast
• D. for example

Explanation: Inconclusive results logically lead to the need for more work, so a consequence connector is required. However and in contrast both signal opposition, which does not fit the relationship between the two clauses. For example would introduce an illustration rather than a conclusion.

6. Complete the sentence: The patient's condition ____ steadily since the operation.

• A. improves
• B. has improved
• C. improved
• D. is improving

Explanation: Since the operation marks a period running from a past point up to now, which calls for the present perfect. The simple past would close the period off and cut the link to the present. The present continuous describes what is happening now without connecting it to the operation.

7. My father was so poor _________?

• A. That he could not buy us food
• B. That who could not buy us food
• C. To he could not buy us food
• D. None of These

Explanation: The result clause after “so poor” is introduced by “that”: “My father was so poor that he could not buy us food.” The structure “so ... that” links a degree with its consequence.

8. Our group will be____________ by your group at next intersection but the goal of both groups will remain same.

• A. joined
• B. replaced
• C. ignored
• D. influenced

Explanation: Joined means connected or combined with another group, which fits the idea that both groups continue toward the same goal. Replaced would mean one group takes the other's place, which conflicts with the sentence.

9. We gave _________a meal.

• A. at the visitors
• B. for the visitors
• C. the visitors
• D. None of These

Explanation: “Give” takes an indirect object for the recipient and a direct object for the thing given: “We gave the visitors a meal.” “At” and “for” do not form the required construction here.

10. The ______ for a vaccine could take up to a year.

• A. chase
• B. pursuit
• C. track
• D. search

Explanation: Search for is the standard collocation meaning an attempt to find something. Chase and track do not normally fit this sentence, while pursuit would require a different structure such as “the pursuit of a vaccine.”