That fellow’s attitude towards others is_______ annoy nearly everyone he meets.

When I entered the step-classroom(阶梯教室), the lecture _________ and the people _________ attentively.

It is well known to us all ____ China sent up a manned spaceship to outer spaceSuccessfully last year.

olving the problem a second time, you’d betterbe more careful ________ you made a mistake

My classmates insisted that I ________ the school field trip to Jilin.