________ with some research materials, he decided on three possible approaches in his experiment.
#90081
A
Preparing
B
Prepared
C
Having prepared
D
Prepare
推荐题目
He said while ______ in the countryside, he ______ a lot of hardships and of course learned a lot.
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A
worked, got through
B
working, went through
C
was working, experienced
D
has worked, experienced
The transportation has improved a lot in our city, with two new roads _______ last year.
#90251
A
constructing
B
to construct
C
constructed
D
construct
The American tourist hurried to the museum, only ________ that the train had pulled out of the station．
#95360
A
telling
B
to tell
C
to be told
D
having been told
The boy whose mother was out for business hurt a finger, an apple into pieces.
#90842
A
to cut
B
cut
C
cutting
D
and cutting
He hurried to the booking office only_________that all the tickets had been sold out.
#98940
A
to tell
B
to be told
C
telling
D
told