问题

__online shopping has changed our life , not all of its effects have been positive.

A:Since
B:After
C:While
D:Unless;

正确答案是：

同类题型

ill people die of in 100 years If you thinkthat is a simple question, you ______ attention to the revolution taking placein biotechnology.

Our country is becoming and .

e to my class every week, but his attitude______ he was not really interested in the subject

_______ is your telephone number —12345678908

The teacher asked us not to______ our books or dictionaries when we are in the exam.