Помогите, пожалуйста. Выберите один из предложенных выриантов ответа:
Last summer Chris (1) ... the university. He (2) ... to various institutions for months and (3) ... to wonder if he (4) ... . He (5) ... hard every day since he (6) ... and, for that reason, he still (7) ... many friends. However, he (8) ... more at hone now and he thinks he (9) ... quite happy here. Next week he (10) ... revising for the end-of-term tests.

1. a) was entered;
b) entered;
c) has entered;
d) had entered.
2. a) was applying;
b) has applied;
c) applied;
d) had been applying.
3. a) had begun;
b) begun;
c) used to begin;
d) has begun.
4. a) will ever succeed;
b) ever succeeds;
c) is ever succeeding;
d) would ever succeed.
5. a) is studying;
b) has studied;
c) had been studying;
d) studied.
6. a) had started;
b) have stated;
c) stared;
d) was starting.
7. a) is not making;
b) has not made;
c) does not make;
d) did not make.
8. a) uses to feel;
b) felt;
c) feel;
d) is feeling.
9. a) would be;
b) be;
c) is being;
d) will be.
10. a) is going to start;
b) will start;
c) is starting;
d) start.