—Have you ever worked on this farm?
—Yes. I _________ cows as a farmer there for two years.
A.raised B.was raising C.have raised D.will raise
This is a heartwarming story about a boy _________ saved his mother’s life.
A.which B.what C.where D.who
—I’m tired out after the 11- day work.
—_________ relax yourself? Go out and enjoy the natural beauty in Baima Lake.
A.Why don’t B.Why not C.Shall we D.What about
Time waits for no man． But some people won't realize the importance of time______it's gone．
A. as B. since C. when D. until
— It’s said that scientists have carried out the vaccine of the COVID-19!
— _________ amazing news it is!
A.What an B.How an C.What D.How
—_________ will the high-speed railway from Huai’an to Nanjing be finished?
—In three years.
A.How soon B.How long C.How often D.How far
