A lesson from the terrible drought(干旱) that hit some parts of southwestern China this year is that more anti-drought projects ______ built in the past years.
A.should be | B.should not have been |
C.ought to have been | D.must be |
推荐套卷
A lesson from the terrible drought(干旱) that hit some parts of southwestern China this year is that more anti-drought projects ______ built in the past years.
A.should be | B.should not have been |
C.ought to have been | D.must be |