The plane lost control all of _______ sudden and crashed in________ forest 30 miles away from the Capital Airport.
| A．the, a | B．a, a | C．/, the | D．a, / |
Only those who have experienced hardship ____ well aware of what happiness means.
| A．can they be | B．they can be | C．can be | D．they can |
The time is not far away ___ the information will be made known ___ more workers will be trained for their jobs.
| A．until; which | B．when; that | C．before; that | D．as; which |
The Science Museum, _____ we visited during a recent trip to Britain, is one of London’s tourist attractions.
| A．which | B．what | C．that | D．where |
_____ was most important to her, she told me, was her family.
| A．It | B．This | C．What | D．As |
—How about buying Sam a mobile phone? After all, he isn’t a boy any more.
—I think it’s necessary, for we sometimes want to make sure if he ______home for dinner.
| A．will come | B．comes | C．has come | D．would come |