____ to teaching, as we know, contributes to his popularity with his students.
A. To devoteB. DevotedC. Being devotedD. Devoting
It does not matter that you are a slow walker _____ you never walk backwards.
A. as long asB. as soon as C. unlessD. until
President Xi appeared in Zhongshan suit in Dutch, ____ displayed the leader's national pride and confidence
A. asB. whereC. thatD. which
Since the sales promotion, all the items _______well.
A. h
ave been soldB. were soldC. had soldD. have been selling
The waste water, when _______，should be clean enough to meet standards.
A. releasingB. being releasedC. releasedD. to be released
As for me, few excitements can beat ______of being admitted to my favorite university.
A. thatB. thoseC. oneD. ones
