几道英语问题

Question

1.how many trees_____this year
A.are planted b.have been planted
2.we are all thankful______his great support to us
A.as B.with C.because D.because of
3.she thought she_______the job next day ,but in fact she didn't do it at all.
A.was going to do B.can complete C.will finish D.couldn't finish
4.are you feeling tired after the game
_________.in fact i feel quite relaxed
A.no a little B.not a bit C.not little D.not bit
5.the ship ______radio signals for help before it sank
A.gave off B.gave out C.gave up D.gave away
6.i am very thirsty ,_______i askesd for some water to drink.
A.that B.for C.so D.as
7.he told me that he ______(drop) maths because it was too difficult for him.
请解释原因，谢谢

Answer 1

B （this year 今年种了多少数，用现在完成时）
D （because of +短语）
A (主句中thought 是过去时，从句时态保持一致，根据句意,D不合适)
B (not a bit =not at all)
A （发出光等，用give off)
C （太渴，所以要水喝，“所以”用 so)

had dropped (已经放弃，过去的过去，用过去完成时）

参考资料：不清楚可Hi我额

Answer 2

1. b 树是被种植的，所以用被动语态。
2. D beacuse of “由于”，后面接短语，because后面接句子。
3. A was going to “将要”
4. B not a bit “一点儿也不”
5. A give off “发出（光线、信号等）”
6. C so“所以”，for“因为”
7. had dropped 表示过去的时候已经发生过的事情，用过去完成时。