With several students         , Mr. Smith came into the lab. 
#96059
A
follow
B
followed
C
following
D
to follow
推荐题目
He hid himself behind the door to avoid _____.  
#97063
A
to see   
B
to be seen  
C
being seen  
D
seeing
I personally think__more listening, speaking, reading and writing is the key to__our English.
#95944
A
Doing; improve
B
To do; improve
C
Do; improving
D
Doing; improving
Not only ______  polluted but ______ crowded. 
#98049
A
was the city; were the streets
B
the city was; were the streets
C
was the city; the streets were
D
the city was; the streets were