—How dangerous it was!—Yes，but for the passer­by’s quick action，the girl ________.

Sir, you ______ be sitting in this waiting room. It is for women and children only.

—Who do you suggest ________ sent to take part in the final competition on behalf of our school?—Jack, I think. 

 It’s high time we _______ effective _______to improve your working conditions.

I ______ through that bitter period without your generous help.