To test eggs,_____ them in a bowl of water: if they float they’re bad, if they sink they’re good. 
#98760
A
put
B
putting
C
to put
D
to be putting
推荐题目
This is a city which lives for today while ____ by its past.
#97832
A
surround
B
surrounding
C
surrounded
D
to surround
It's no good ________ here. Let's go home.
#94479
A
to wait    
B
waited
C
waiting
D
being waited
______ twice, the postman refused to deliver our letters unless we chained our dog.
#95354
A
Being bitten
B
Bitten
C
Having bitten
D
To be bitten