－What were you doing when you heard Eastern Star went down in the river?
－I my homework.
A. have done B. am doing C. was doing D. do
—Everyone must _____ the security check (安检) before getting on the plane at the airport.
—Yes. It’s necessary to ensure the passengers’ safety.
A. get through B. get across
C. go through D. go across
－Smoking isn’t allowed in public. Do you know the news?
－Yes, and I also helped to the signs in the street last week.
A. put off B. hand out
C. give away D. cheer up
—Nowadays, more and more people prefer shopping online. What do you think of it?
—It’s much ______ and the products are really good.
A. more expensive B. cheap
C. cheaper D. expensive
－Are your parents angry with you about your English?
－Oh, of them is angry. They just told me to get better grades next time.
A. none B. both C. neither D. all
—You’ve been here _____ a month. Don’t you miss your parents?
—Yes, I plan to come back home _____ a month.
A. in, in B. for, in
C. for, after D. after, after
