A、ensure
B、assure
C、insure
D、make sure
第1题:
--Why didn't you buy it?
--I ______, but I didn't have the money.
A. would
B. would have
C. had had
D. had bought
第2题:
第3题:
第4题:
The lifeboat releasing gear lever should be marked with the words ______.
A.DANGER,DO NOT TOUCH
B.DANGER,BOAT MAY DROP
C.DANGER,LEVER RELEASES BOAT
D.DANGER,LEVER DROPS BOAT
第5题:
第6题: