问题

k you should complain, _____, of course, you arehappy with the way things are.
A:until
B:although
C:when
D:unless
B:although
C:when
D:unless
正确答案是:
同类题型
____ do you ___ this book —It is very interesting.
I’ll probably see you on Sunday; , it will be on Monday.
Where’s my baseball— ________under the bed.
I believe in you, I don’t _______your viewpoint_______ she is failing to find a well-paid job again
Tony lives in a neighborhood and he can’t sleep well at night.