—Where on earth have they gone?—I have no idea, but I wish I .
#87732
A
know
B
knew
C
would know
D
would have known
推荐题目
But for friction (摩擦力), people ______ neither walk, nor even stand up.
#86752
A
can
B
were able to
C
will be able to
D
could
It was sad to me that they, so poor themselves, ________ bring me food.
#86377
A
might
B
would
C
should
D
could
Tom’s boss told Tome that if he worked hard, he _____ have a rise.
#87797
A
may
B
ought to
C
can
D
shall