She remains optimistic (乐观的) in spite of so much hardship she has _______ .
____ the working efficiency(工作效率), the boss allows the employees to have a coffee break.
Such __ medical equipment is in ____ danger of breaking down, if not taken good care of.
----- Sorry to keep you waiting for long.I’ll make short work of this. ----- _____.I’m not in a hurry.
Mr.Barret doesn’t think that all bad language should be allowed.In his opinion, there are _____ that should be kept up.
---- Hi, Vera, have you checked the account yet? ---- Certainly, I ______ it five times even though you told me to do it twice.