By the end of last month, I _____ all the CDs of Justin Bieber.
#42234
A
collect
B
collected
C
have collected
D
had collected
推荐题目
We are glad to hear that the Greens _____ to a new flat next week.
#42230
A
move
B
moved
C
will move
D
have moved
--What a beautiful school!–Yes. Many trees ________ in our school every year.
#39740
A
plant
B
are planted
C
were planted
D
is planted