The old professor, to_______ the important invention _______, decided not to keep it for himself, but to make it known to all over the world.
#70132
A
whom; was belonged
B
which; belonged
C
whom; belonged
D
which; was belonged
推荐题目
.— I wonder if you _______ a picnic tomorrow.— Yes. But if it ______, we’ll visit the museum instead.
#41003
A
have; rains
B
will have; rains
C
have; will rain
D
will have; will rain
While we _________, we saw a UFO land on a street. 
#41211
A
were shopping
B
shopped
C
are shopping
D
shop
       you may have, you should gather your courage to face the challenge.
#68062
A
However a serious problem
B
What a serious problem
C
However serious a problem
D
What serious a problem