While he         in Europe, he        some photographs of many universities.
#95981
A
traveled ;took
B
traveled ;had
C
was traveling ;put
D
was traveling ;took
推荐题目
 Faced with a bill for $10,000,________.
#89190
A
an extra job has been given to John
B
the boss has given John an extra job
C
an extra job has been taken
D
John has taken an extra job
When he was a boy, he used to go there and watch _____.
#98869
A
to repair bicycles
B
bicycles to be repaired
C
bicycles being repaired
D
repairing bicycles
 Mary came in , _____ by her dog. 
#96539
A
following
B
to follow
C
followed
D
to be followed
Instead of ________sights, Edison would spend the time ________in the public library.
#93405
A
seeing, to read
B
see, read
C
to see, to read
D
seeing , reading