We know that about seventy percent _____ the earth _____ covered by water.
#44426
A
/; is
B
of; are
C
of; is
D
about; are
推荐题目
—Look at the sign on the right. —Oh, parking ______ here.
#44971
A
doesn’t allow
B
isn’t allowed
C
didn’t allowed
D
wasn’t allowed
-It’s said that English ________all over China. -Not really. Only some can speak __________ English. 
#44687
A
is spoke, a little
B
is spoken, a bit
C
is spoke, a lot of
D
is spoken, a bit of
—Many tourists ________to the Great Wall every year.—Yes, that’s true.
#44726
A
attract
B
have attracted
C
are attracting
D
are attracted
 Can’t you see that sign? Taking photos _______ here. 
#44371
A
aren’t allowed
B
don’t allow
C
isn’t allowed
D
doesn’t allow