问题
Should I look up the new words each time I come across some—No, refer to your dictionary only ______.
A:where possible
B:when necessary
C:if ever
D:if so
B:when necessary
C:if ever
D:if so
正确答案是：
同类题型
Would you please drive______ My plane is taking off.—-I’d like to, but safety comes first.
________ from the north side, the beautiful water fall just looks like three fairies with long hair.
In our country the cold weather in the north_____ sharply _____the hot weather in the south. [ ]
Why does the Lake smell terrible?-Because large quantities of water