----Shall I invite Ann to my birthday party tomorrow evening? ----Yes. It’ll be fine if you______.
Sam _____ some knowledge of the computer just by watching others working on it.
A new iPad in the market costs about ______ of a second-hand one.
By the time we arrived at the railway station, the train _________. As a result, we missed the train.
The small mountain village we spent our holiday last month lies in is now part of Hubei.
________ our surprise, when the audience saw this film, they all shouted ______ surprise.