The main unit _________  all the computer’s electronics.
#51926
A
contains
B
shows
C
uses
D
helps
推荐题目
--- Does Mike play basketball every day?--- He ________ that way, but now he plays only on Sunday.
#59632
A
used to play
B
is used to play
C
used to playing
D
was used to play
It is important for us _____ our English. 
#54004
A
improving
B
improved
C
to improve
D
improves
---Have you read this book?---Yes.I _______ it two weeks ago.
#63695
A
am reading
B
have read
C
will read
D
read