–Lots of trees and flowers ________ on both sides of the road last year. --Oh, _______ beautiful they are!
#44520
A
have been planted; how
B
were planted; what
C
were planted; how
D
have been planted; what
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 The students    how to do the experiment in class yesterday.
#45055
A
were taught
B
better
C
was taught
D
teach
Put away your school things.Your stationery must       carefully.
#44775
A
be taken good care
B
be taken good care of
C
take good care
D
take good care of
--How clean and tidy your bedroom is!--Thanks. It______ every day.
#44559
A
cleans
B
cleaned
C
is cleaned
D
was cleaned