Green products are becoming more and more popular because they are environmentally .
| A．friendly |
| B．various |
| C．common |
| D．changeable |
Soon they got to the bank,____stood a big pine tree.
| A．In front of which | B．There | C．Where | D．It |
One of the men held the view ____ the book said was right.
| A．what that | B．what | C．that | D．that what |
The young man went into the cinema and after ____ seemed half an hour he came out.
| A．that | B．it | C．what | D．which |
It was quite a serious mistake, ____caused by carelessness.
| A．which I think was | B．I think which was |
| C．which I think it was | D．I think which it was |
____ method you choose, so long as you finish the job on time.
| A．It isn’t a matter to me what | B．What doesn’t matter is that |
| C．It doesn’t matter to me which | D．No matter which |