He feels it his duty ____ others.
#98689
A
to help
B
to be coming
C
help
D
helped
推荐题目
---He spent as much time as he could __________ his spoken English. --- Wish him good luck !
#95678
A
improve
B
improving
C
to improve
D
improved
__________from what everyone says about him, I would say he has a good chance of winning.
#95521
A
To judge
B
Judging
C
Judged
D
Having judged
Although _____of danger, tourists can't help taking photos near the cliff （悬崖） ．
#90016
A
having warned
B
warned
C
warning
D
to be warned
From where I stand， the key to the test is to practise English every day.
#96548
A
passing； speaking
B
passing； to speak
C
pass； speaking
D
pass； to speak