—Why are the tax collectors so busy?  —Many people prefer to have their tax forms completed by a professional rather than ___. 
#94782
A
do it themselves
B
doing it themselves
C
to do it themselves
D
done by themselves
推荐题目
I ____ at my new novel when the big earthquake happened at 2:20 pm.
#92423
A
am working
B
was working
C
have worked
D
had been working
How many years is it ______ your family moved here?
#94690
A
after
B
since
C
before
D
until
He's late, __is often the case. 
#92571
A
as
B
what
C
it
D
this
She didn’t allow the accident to discourage her. On the contrary, she began to work        .
#93378
A
as twice hard
B
twice as hard
C
twice as harder
D
harder twice
It was in the street ______ I met John yesterday. 
#93804
A
where
B
which
C
that
D
when