You can’t imagine what great trouble they have _________ the problem_______.
#95579
A
to solve; being talked about
B
solving; discussing
C
to solve; to talk about
D
solving; being discussed
推荐题目
Years later, I began ______ what he told me right.
#97738
A
knowing
B
to know
C
recognize
D
to recognize
(2013·福建毕业班质检)It is said that sixty percent of all energy ________ in the world today is being lost as waste heat.
#89316
A
produced
B
producing
C
to produce
D
having produced
Tom looked at Jenny, with tears ______his eyes, and shouted out the words ______ in his heart for years.
#96682
A
filling; having been hidden
B
filled; hidden
C
filling; hidden
D
filled; hiding
—What’s up? You look down. —I have piles of papers ______, but I type so slowly.
#94076
A
to be typed
B
typed
C
to type
D
being typed
_____, the boy couldn't enter his house.
#98293
A
Since the key had lost
B
The key being lost
C
Lost the key
D
Having lost the key