—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
He__________ he would be able to leave tomorrow, but it's beginning to took difficult.
#94973
A
hopes
B
was hoping
C
had hoped
D
hoped
It has been proved _______ eating vegetables in childhood helps to protect you against serious illnesses in later life.
#93434
A
if
B
that
C
what
D
when
Modern science and technology has ___ communication between people far apart.
#94771
A
made convenient
B
made it convenient
C
made it convenient for
D
made it convenient to
Not until he left his home ______ to know how important the family was for him.
#92833
A
did he begin
B
had he began
C
he began
D
he had begun