—Dad, when shall we go to visit my grandpa?—Grandpa is very busy at present．We'll go to see him whenever __________.
#93047
A
he is convenient
B
he will be convenient
C
it is convenient to him
D
it will be convenient to him
推荐题目
Tom was about to close the window ________ his attention was caught by a bird.
#92832
A
when
B
if
C
and
D
till
With the help of the high technology, this year the factory has produced ________ it did last year.
#91907
A
twice as many as
B
twice as many cars as
C
twice as many as cars
D
twice cars as many as
It is no ____ arguing with Bill because he will never change his mind.
#94094
A
way
B
help
C
time
D
use
The little boy who got lost decided to remain _____ he was and waited for his dad．
#93969
A
what
B
where
C
there
D
what
Until the present century, ________ demand for natural gas.
#94717
A
little
B
and little
C
there was little
D
was there little