—Please go on with your demonstration．—But where was I?—Well, you_____the two chemicals together．
#95249
A
tried to mix
B
were trying to mix
C
were trying mixed
D
had tried to mix
推荐题目
Taking this kind of medicine, if ________, will do harm to health.
#90760
A
continue
B
continued
C
to continue
D
continuing
If the work _____ by the end of this month is delayed,the team will be fined.
#95268
A
to be finished
B
is finished
C
being finished
D
finished
These diagrams are especially helpful when we have a concrete problem ______ at hand.
#90962
A
be solved
B
to solve
C
solved
D
being solved
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