问题

It is recently reported that quite a number of applications ________ from Apple’s official APP. Store are not safe to use.

A:downloading
B:downloaded
C:having downloaded
D:to be downloaded;

正确答案是：

同类题型

It’s hot today. Why don’t we go swimming—-_________.

I’m afraid Mr. Harding _____ see you now. He’s busy. [ ]

In order to keep fit, he is trying to ________cigarettes and beer every day.

This year our school is __________ than it was last year.

The experiment shows that proper amounts of exercise,if___________regularly, can improve our health[ ]