问题

Shall we go to the amusement park this Sunday, mum—- Sure, ________ I am busy.

A:unless
B:if
C:but
D:or;

正确答案是：

同类题型

Who called your sister just now–I don’t know, but it was a girl’s_____.

My mother often tells me __ to MP3 while I am doing my homework.

Can you see the boys footballon the playground They are my classmates.

I will never forget the days _____ we spent together in the beautiful and quiet villages.

下列各句中，没有语病的一句是