Giúp với
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**Exercise 3. Choose the correct verb to complete each sentence.**

1. Spending many hours sitting in front of a computer each day **make / makes** it difficult for people to lose weight.
2. The leader of the students **have / has** long hair.
3. The number of families with one parent **have / has** increased significantly.
4. Each of the members of the group **was / were** made to write a report every week.
5. Seven dollars **is / are** not enough to get me to jump in the Atlantic Ocean in February.

6. Boston, and all New England cities, **tend / tends** to get snow in January.
7. One of those disasters that often **occurs / occur** only in movies happened just as I got off the plane.
8. Either the children or the parent **have / has** to give in.
9. A great deal of money **was / were** spent on furnishing her apartment.
10. The fact that we are usually late for class really **upset / upsets** the teacher.