问题

Why didn’t you go to Shelly’s birthdayparty yesterday evening—I ______ but I had an unexpected visitor

A:when
B:while
C:unless
D:which

正确答案是：

同类题型

Thanks for listening to my problems and meyour useful advice. — .

134She may have missed the train, ________ she won’t arrive for another hour

下列词语中，没有错别字的一项是

I want to watch Jurassic World __________ second time because it is a fantastic movie .

Add some honey ______ the hot tea, please.