— A computer is very popular and helpful .— I think so. It _______ in many different fields.
#36579
A
used
B
will use
C
is used
D
was used
推荐题目
Fish ________ without (没有)water .
#42450
A
dies
B
is dying
C
won’t die
D
will die
— Do you know ______ yesterday afternoon?— Sorry, I’ve no idea. 
#42047
A
where was Tom
B
where Tom was
C
where is Tom
D
where Tom is
----      your son        a computer?------No.He        one this summer vacation.
#36548
A
Has; bought; will buy
B
Did; buy; bought
C
Does; buy; bought
D
Does; buy; will buy