In many countries, government reports, legal papers and most business letters are the main situations _______ English is used.
| A．that | B．when | C．which | D．where |
Mother told Jim to watch the milk until it boiled and then _________ off the gas.
| A．turn | B．turning | C．turned | D．having turned |
The idea puzzled me so much that I stopped for a few seconds to try to _______.
| A．make it out | B．make it off | C．make it up | D．make it over |
With exports ______ a big role in its economic growth, China has been affected by the current financial storm.
| A．playing | B．to play | C．played | D．play |
— How ab
out buying Sam a mobile phone? After all, he isn’t a boy any more.
—I think it necessary, for we sometimes want to make sure if he _______ home for dinner.
| A．will come | B．comes | C．has come | D．would come |
The young man, ______ several attempts to beat the world record in high jumping, decided to have another try.
| A．to make | B．making | C．made | D．having made |