Is it polite to speak or laugh loudly _________ –No, I don’t think so.

The computer was used in teaching.As a result，not only ________，but students became more interested in the lessons.

Excuse me, sirWould you do me a favour? — Of courseWhat is it?　— I ______ if you could take me to the station

theworkshops, the executives had a talk with the workers.

I __________all the cooking for my family, but recently I’ve been too busy to do it