-What is your advice?- necessary, you’d better not refer to the dictionary.A.If
来源:网络
时间:
推荐文章

-What is your advice?
-________ necessary, you’d better not refer to the dictionary.
A.If it
B.If it is
C.Unless
D.Unless it
试题答案
C
在本题中,if引导句子前后逻辑不通,应当排除,前面部分补充完整为:Unless it is necessary,省略it is,只有C项合适。