----It’s traditional in China to firecrackers on Spring Festival.
----But the serious smog（雾霾）nowadays needs us to stop it.
| A．give out | B．set off | C．put off | D．show off |
－What do you think of the dish?
－It looks _____ and it tastes _____ too.
| A．tasty; well | B．well; delicious | C．tasty; good | D．well; nicely |
If you want to be healthier, you shouldn't do _____ in the classroom all the time but do more _____ on the playground.
| A．exercise; exercises | B．exercise; exercise |
| C．exercises; exercises | D．exercises; exercise |
They looked _____ each other and kept their secrets _____ themselves.
| A．for; to | B．at; for | C．at; to | D．out; at |
Jack had a wonderful time _____ many interesting places in Beijing and he had much time __________ the city.
| A．to visit; to enjoy | B．to visit; enjoying |
| C．visiting; to enjoy | D．visiting; enjoying |
I have some problems __________ my homework. Could you tell me _____?
| A．with; what the height of the mountain is | B．in; what the height of the mountain is |
| C．with; what is the height of the mountain | D．in; what is the height of the mountain |