I have read a series of stories about some world famous great scientists, are from our country.
A.two of them | B.two of whom | C.both of them | D.both of whom |
He was walking along the sands ______ he saw a big footprint in the sand.
A.while | B.as | C.when | D.after |
In public places, we can often see ______ that tell us useful things, such as no parking, no smoking, etc.
A.symptoms | B.signs | C.systems | D.signals |
It ______ delicious, so the cake was eaten up and mother smiled.
A.was tasted | B.tasted | C.was tasting | D.tastes |
The boy is ______ computer games and stays in the Internet cafe all day and night.
A.interested in | B.enthusiastic about | C.crazy about | D.surprised at |
The government is trying to do something to ______ the employment rate so that more people have jobs.
A.add | B.gain | C.achieve | D.increase |