Nothing but grass and trees ____ the hill. 
#86172
A
covers 
B
cover 
C
covering 
D
iscovering
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 -How much _____ the trousers? -The trousers? Oh, ­____ 230 yuan.
#44084
A
is, it’s
B
are, they’re
C
are, it’s
D
is, they’re
 E-mail, as well as telephones, _____ an important part in daily communication.
#85691
A
is playing
B
have played
C
are playing
D
played
Mary, along with her parents ________ Hainan for a week and they will come back soon.
#43967
A
have been to
B
has been in
C
have been in
D
has been to