问题

technique ____, the production as awhole increased by % percent last year

A:employing
B:having employed
C:to have been employed
D:having been employed

正确答案是：

同类题型

We should do as much as we can _____our country better and more beautiful: [ ]

As one friend of his, you should give him a hand when he is in trouble.

Mark is always ready to help those who are in trouble.

People _____ with anyone who is always talking about how wonderful he is.

She ____ on her homework in her study now .