25. – Tom, it's too late. Our son ________ be back.– Don't be anxious. I dare say he ________ have some extra work to do.
____________ with the efforts that the students made, all the teachers nodded and smiled.
Not until the teenager left his hometown ________ how much he loved it.
--Yao Yuan,a disabled woman,won the National Championships Cup last week. --My goodness! She _______a lot of difficulties!
Don’t take up other people’s personal space, ______ will bring much inconvenience to them.
Everyone queued up before the booking office in silence, having nothing to do but _________.