—Can you find our city _______ a lot in recent years?
—Yes. The road is wider and the buildings are taller.
| A．has changed | B．changes |
| C．changed | D．will change |
-- Is this i-phone _________?
--No, it isn’t. I am just thinking of buying________.
| A．your, it | B．your, one |
| C．yours, it | D．yours, one |
The heavy rain stopped the tourists________climbing down the hill.
| A．in | B．by | C．from | D．to |
This is such________useful book that I have learned a lot from it.
| A．a | B．an | C．the | D．/ |
—Middle school students don’t know much about shopping online，______they？
—__________ . It’s very popular with teenagers .
A. do，No，they don’t
B. do，Yes，they do
C. don’t，No，they don’t
A Wechat（微信）is an invention ________can help people talk to friends，share photos，ideas and feelings freely .
A、which B、who C、/