He feels that he is not yet ___to travel aboard.
A. too strong
B. enough strong
C. so strong
D. strong enough
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She was once a young country wife with chickens in the backyard and with a view of _____mountains behind the apple orchard.
A. blue hazy Virginia
B. hazy blue Virginia
C. Virginia hazy blue
D. Virginia blue hazy
U.S News____ ranking of colleges since 1983. They are a very popular resource for students looking to apply to a university campus.
A. maintains
B. is maintaining
C. maintained
D. has been maintaining
When you finish your work, don’t forget to put the tools back where they _____ .
A. are
B. will be
C. were
D. had been
When she came out, Mary looked a bit tired because she ______ the house.
A. cleaned
B. was cleaning
C. had cleaned
D. had been cleaning