Emergency line operators must always _______calm and make sure that they get all the information they need to send help.A. grow B. appear B. become D. stay
The famous reporter, who is said to have gone back to America last year, _____in China for almost twenty years.
The new method Mr.Wang has been devoted to _____ effective.
Whom would you rather _____ with you, Wang or Zhang?
This party is _____ a success _____ the famous actress's absence.
------ I'm sorry to interrupt you, Sir.May I ask you a favor? ------ yes, _____.