Is this the website_______  you want to have ____ into your files to help you learn English? 
#4969
A
who; to add
B
that; add
C
whom; adding
D
that; added
推荐题目
Edward, you play so well. But I ______ you played the piano. 
#5038
A
didn’t know
B
hadn’t known
C
don’t know
D
haven’t known
The young man spent as much time as he __ over his lessons.
#4555
A
went
B
could go
C
could going
D
could to go