Xi’an is ancient city. It has long history.
| A．a； a | B．an, a | C．The； an | D．/ ； a |
The teacher came into the classroom ___ a smile on her face.
A. in B. to C. with
Do you know ______? Yes. It will take off at five.
A. when the plane will take off
B. when the plane took off
C. when will the plane take off
.How do you like this film?
Funny. I couldn’t help ____ when I watched it.
A. laugh B. laughing C. to laugh
I think the price of house in Guang’an is _____than it in Nanchong.
A. higher B. more higher C. most high
My sister ____two hours doing her homework every day.
A. takes B. spends C. costs