问题

Why not look up the new word in a dictionary _____ you don’t know it

A:if;;
B:that;;
C:though;;;
D:whether;

正确答案是：

同类题型

I think the result must him very much.

If you don’t know how to spell the new words, please_____in the dictionary.

The schoolboy _________to the blind man on his Wayhome yesterday afternoon．

_______the house being untidy, but I hate it if it’s not clean.

___________________ — I’m being served Thank you anyway