_________ is a fact that English is being accepted as an international language.
---- What were you doing when Tony phoned you?---- I had just finished my work and _____to take a shower.
----The train will arrive at the station in half an hour. Who ______for us? ----I am sure Dad will be standing there when we get off the train.
Although medical science________ control over several dangerous diseases, what worries us is that some of them are returning.
George Gould, a friend of Carnarvon’s, went to Egypt after hearing of his strange death and visited the tomb, only ______a high fever the next day.
Yang Liwei was a student at this flight school from 1983 to 1987, he studied very hard and was made chairman of the Students’ Union.