问题

The Gree (格力) Company is developing a new kind of machine can cool down our rooms more quickly.

A:who
B:what
C:whom
D:which;

正确答案是：

同类题型

Chinese students find it difficultto understand native speakers when in London— Exactly, they’velearned a lot about grammar and known many words

Father is sleeping . You’d better __________ quiet.

In the meeting room, there is a brown sofa, ________ there is a wooden ceiling[ ]

Modern plastics can ________ very high and very low temperatures. [ ]

“6:50” reads __________.