With temperature ______ so rapidly, we could not go with the experiment.
#88258
A
fall
B
falling
C
fallen
D
to fall
推荐题目
The child sat in the dentist’s chair _______. 
#97432
A
tremble  
B
trembling  
C
trembled 
D
to trembled
Knowing how to give first aid really ______ in case of emergency. It can save lives. 
#96925
A
makes difference
B
has a difference
C
makes a difference
D
makes the difference
Lily’s mobile phone was left in a taxi accidentally, _____ again.
#90688
A
never to find
B
to never be found
C
to never find
D
never to be found
Once ____in the examination, your grade will be cancelled immediately.
#95145
A
caught cheating
B
caught to cheat
C
catching stealing
D
to be caught to steal