A、Once
B、Because
C、When
D、As long as
第1题：
(A) hadn’t seen
(B) didn’t see
(C) don’t see
(D) haven’t seen
正确答案：D
解答参考：有since引起的状语时，谓语动词通常要用完成时态。本句中我们没有再见面‖是到现在为止所发生的情况，故用现在完成时。【译文】自从大学毕业以后，我们没有再见过面。
第2题：
We ___ the time to play chess.
A、don’t have
B、not have
C、no have
D、does have
第3题：
我们从特供商场购买食品，并加强对所购食品的检查
A.We’ll buy all the food from supermarket and check all the food we buy carefully
B.We’ll buy all the food from foreign countries and check all the food we buy carefully
C.We’ll import all the food and check all the food we buy carefully
D.We’ll buy all the food from exclusive shops and check all the food we buy carefully
第4题：
– Hurry up. The lecture begins at 2: 00.– ( ).
A. Don't worry. We've got 20 minutes
B. Thank you. No hurry
C. Never mind. You go if you like
D. The lecture is useful
第5题：
A.don’t … at
B.didn’t … at
C.didn’t … in
D.don’t ...in
第6题：
If John leaves, we'll be in trouble, ______ ?
A. if he
B. does he
C. won't we
D. don't we
根据题干内容，反意疑问句的疑问部分通常对主句部分发出疑问。如果约翰走了，我们会有麻烦的，是吗?
第7题：
A、is coming/ don’t need to wait
B、has come/ don't need wait
C、comes/ needn’t wait
D、comes/ needn’t to wait
第8题：
The problem is so serious that the situation is out of control.
A.We’ve got to set up a police line and ask for aid
B.We’ve got to ask for back-up from the PLA and police
C.We’ve got to report to the superiors rapidly and ask for back-up
D.We have informed the authorities to take precautionary measures.
第9题：
A、didn’t clean
B、hadn’t cleaned
C、don’t clean
D、haven’t cleaned
第10题：
A、We ; us
B、Us ; we
C、We ; our
D、We ; we