A stranger started walking about in the hall,       to find the main office.
#90394
A
trying
B
to try
C
tried
D
was trying
推荐题目
I like getting up very early in summer. The morning air is so good ________.
#94458
A
to be breathed
B
to breathe
C
breathing
D
being breathed
Our teacher is clever and hardworking, but not very good at _______ his ideas to us. 
#95817
A
getting over
B
getting across
C
getting on
D
getting into
Would you mind not ________ about me ?
#97232
A
worry
B
worrying
C
worried
D
to worry