He wondered if he could slip out of the lecture hall without anyone______.
#98955
A
noticing
B
noticed
C
to notice
D
being noticed
推荐题目
The professor has received the letter ____ to give a lecture in ftinceton Institute.
#98041
A
being invited
B
to be invited
C
inviting him
D
invited
To enjoy the scenery,he would rather _____  long hours on the train ___ travel by air.
#96177
A
spend ; to
B
to spend; rather than
C
spend ; than
D
spending; while
_________ that he was in great danger,Eric walked deeper into the forest.
#97919
A
Not realized
B
Not to realize
C
Not realizing
D
Not to have realized