问题

I think that we should produce more things from materials that have been recycled, and less from raw materials, __________ is growing smaller and smaller.

A:their supply
B:the supply of which
C:the supply of themDof which supply
D:of which supply

正确答案是：

同类题型

It is in Nantong _____ you’re going to pay a visit to ______ this kind of radio is made．

ften stays up, reviewing her lessons, books___all over the desk

Not until ____ finished my homework ___ to watch TV.

下列各句中，没有语病的一句是(　　)

Mymost moment was trying to introduce a woman whose nameI couldn’t remember.