问题
Occasions are quite rare ______ I have the time to spend a day with my kids.
A:when;
B:that;
C:which;
D:what;
B:that;
C:which;
D:what;
正确答案是：
同类题型
I tried to call you last night, but Icouldn’t ______.
Everybody in the village likes Jack because he is good at telling and _________ jokes.
It’s not easy to learn a foreign language, but I will never _______.
Would you like _______ with me
You need __________ more every day. It’s good for your _________.—But I can’t get up early.