The doctor warns Jack smoking because it is bad for his health.
A. to stop B. not to stop C. stopped D. not stopped
—Where is Mum now?
—I'm not sure. She ________ be in the kitchen.
A.can't B.may C.need D.must
—What do you think of WeChat?
—Talking on WeChat ________ people's way of communicating in the recent few years.
A.influences B.influenced C.is influencing D.has influenced
—Mum, I want to watch the program I Am a Singer now.
—Sorry, you can't watch it ________ you finish your homework.
A.when B.if C.after D.until
—Many people went to America in ______.
—Yes. My grandfather was one of them. He went there in his ______.
A.1990s, twenties B.1990s, twenty C.the 1990s, twentieth D.the 1990s, twenties
I have three pen pals. One is ________, and the other two are ________.
A.Japanese；America B.Russian；Germen
C.Canada；Australian D.English；Frenchmen
