问题

This special strain of rice makes _________ possible to produce one third more of the crop in the same fields.

A:it
B:them
C:which
D:that

正确答案是：

同类题型

She agreed us, so we agreed the project at last[ ]

__________do you go to the library —— Three times a month..

The WHO ________ eat less bacon and other preserved meat because they can cause cancer.

iend Jane, even though she was busy, to your help when you were in trouble.——You are right, but it is like her to be selfish.

t mistaken, Rio de Janeiro of Brazil waschosen as the host city for the 2016 Olympics