. --Can you smell something _________  in the house? --Oh! I forgot to turn off the gas cooker! 
#88854
A
to burn
B
burning
C
having burnt
D
having been burnt
推荐题目
It is reported that the bridge ______ last year has been damaged in a terrible flood.
#90714
A
having been completed
B
to be completed
C
completing
D
completed
 ________ the opportunity to speak at the graduation ceremony made him overjoyed.
#88522
A
Being offered
B
To offer
C
Having offered
D
Offered
Mark often attempts to escape __________ whenever he breaks traffic regulations.
#93108
A
having been fined
B
to have been fined
C
to be fined
D
being fined