Last month a new law______in China to stop people from smoking in public places.
| A．is passed | B．passes | C．had passed | D．was passed |
There is _____ boat in ________river.
A. a; the B. the; a C. a; a
Some of my friends are interested in science,but none of them can tell_____.
| A．when UFOs will appear next time. |
| B．why do horses know the way. |
| C．where was this kind of plant found. |
| D．how do elephants communicate. |
—I’m worried about the coming test.
—You should work hard for it,_____you’ll have to take it again.
| A．and | B．or | C．but | D．however |
—Have you got everything_____you need to take for the trip?
—Yes.I have got everying read.
| A．who | B．where | C．that | D．when |
Rober will start a driverless taxi service,so don’t feel surprised when you see a taxi coming_____a driver.
| A．by | B．of | C．without | D．with |