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
推荐题目
--When _____ the abacus _____? -- In the sixth century by the Chinese people.
#44867
A
is, invented
B
did, invent
C
was, invented
D
does, invent
—Computer is so useful. It can do almost everything. —Yes, but it ______ what to do.
#44720
A
will tell
B
has known
C
must be told
D
is told
—All the happiness was_________ when we heard the bad news from Yushu．—But what happened to you ?
#44999
A
disappeared
B
missed
C
lost
D
gone
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