23. The writing brushes ____bamboo and animal’s hair.
#103314
A
are made of
B
is made from
C
is made of
D
are made up
推荐题目
There are lots of problems in your hometown, but we're happy to see many of them___________.
#102184
A
are solving
B
are solved
C
have solved
D
are being solved
By the time the fire-engine arrived, the fire        by the inhabitants.   
#102035
A
put out
B
had been put out
C
was put out
D
had put out
—You haven’t got the textbook for my chemistry yet.—I know, and we ________ to get it for the last five weeks.
#100488
A
will have been trying
B
have been trying
C
will be trying
D
had tried
----We could have come here much earlier in your car. ----I agree. But it _____. 
#99941
A
is repaired
B
was being repaired
C
had been repaired
D
is being repaired