After a 3-week winter vacation， students usually some weight when they return to school.

Though our English teacher is very strict with us, most of us have to ______ that his teaching is quite wonderful.

The theory he sticks to ______ to be of nouse in our studies

Bob, would you like to come to ourparty—-_________.

Miss Wang’s class is very interesting. —________. We all like her class very much.