问题

The directions for operating this machine were so______ that we could not understand

A:set out
B:set about
C:set up
D:set off

正确答案是：

同类题型

Not Tom, but I ___to blame for the failure.

didn’t attend the lecture,did she — Yes, she ________

There is still so much to discuss. ________, we shall return to this topic in tomorrow’s class.

The employees _______that they should renew their contracts within a week

I have been worried about the possible danger ofdriving on a railway line. —Do not be afraid. God will______ us.