Waste paper mustn’t _______. We should keep our environment clean.
#44420
A
throw away
B
thrown away
C
be thrown away
D
been thrown away
推荐题目
People should __________ from __________ down the trees to protect the earth.
#44463
A
be stopped, to cut
B
stop, to cut
C
be stopped, cutting
D
stop, cutting
---There’s too much salt in the Chinese diet. ---So there is. The WHO says only 1.5 grams of salt __________ for each man every day.
#45066
A
is needed
B
needs
C
will need
D
has needed
This pair of socks ______ worn out. I'll have to buy a new ______.
#44734
A
is, one
B
are, ones
C
is, pair
D
are, pairs
They are looking forward to _____________ to the lecture by the famous professor.
#44447
A
send
B
be sent
C
being sent
D
sending