about this computer program, a huge amount of time and energy .
#79940
A
Should I know; be saved
B
If I had known; can be saved
C
Had I known; would have been saved
D
Did I know; was saved
推荐题目
Young people tend to get up very late unless ________ to rise early.
#83368
A
required
B
requiring
C
they were required
D
to require
Only by practicing every day ___________ English well.
#84503
A
can we learn
B
we can learn
C
did we learn
D
learn we
-- It is fairly warm today. -- So _____ and so _______ yesterday.
#83007
A
it is, was it
B
it is, it was
C
is it, was it
D
is it, it was
—Will Mr. Black go to the opening ceremony this weekend?—No, he has finally decided _____.
#80168
A
not
B
not to
C
not to go
D
not to go to
The joy of life is a deep spring. Only when digging deep ______ clear and sweet water.
#82158
A
you can draw
B
did you draw
C
can you draw
D
you draw