Not only should you get used ______ under difficult conditions but you also you pay more attention ______ your work well. 
#98934
A
to work, to do
B
to working, to doing
C
to work, to doing
D
to working, to do
推荐题目
Could I have a cigarette? I seem_________.
#95362
A
to run out
B
to have run out
C
to have run out of
D
to have been run out
He spent every minute he could _____ spoken English.
#98936
A
practise。m
B
to practise
C
practising。m
D
practised
 ____ by high mountains, the city is infamous for air pollution. 
#90478
A
Surrounding
B
To be surrounded
C
Surrounded
D
Having surrounded