I really miss my American friend Nick. It's nearly four years _____we last meet.
| A．that | B．as | C．until | D．since |
________in space by ordinary citizens will be common.
| A．Travel | B．Travelling |
| C．Travelled | D．To travel |
—Are you free，Jane？Let’s go to watch the movie.
—Well，time is________；the real problem is that I haven’t got much money.
| A．the major issue | B．the question |
| C．not the issue | D．out of the question |
You may________it that he will turn up in time.
| A．decide on | B．depend on |
| C．answer for | D．make sure |
The old man told me that this kind of plant didn’t need________．
| A．to water | B．water |
| C．watered | D．to be watered |
She has been warning________the danger of driving the car________a high speed.
| A．against；at | B．against；with |
| C．of；at | D．of；with |