Question

英语填空题求解,Follow the example and complete thesentences by usin

Answer 1

1.whether

2.whether/if

3.whether

4.whether/if

5.whether

6.whether

7.whether/if

8.whether/if

9.whether

10.whether

注：多数情况下,whether和if可以互相通用.

但介词后只能跟whether,不能跟if,如1,5题.

与or not连用时,只能用whether,不能用if,如6题.