The police still haven’t found the lost child, but they’re doing all they .
| A．can | B．may | C．must | D．should |
---Kate returned home last night.
---Really? Where_________?
| A．had she gone | B．has she been | C．has she gone | D．had she been |
---Are the food and clothes_________the quake-hit area?
---Yes, they will be flown there ahead of time.
| A．flowing to | B．flew to | C．being flown to | D．been flowing to |
It was in that country_____he studied for his doctor’s degree____he fell in love with the girl.
| A．that;that | B．which;where | C．where;that | D．where;where |
It is strongly suggested that measures________factories to pour waste into rivers by the government.
| A．be taken to prevent | B．be taken to forbid | C．are taken to prevent | D．are taken to forbid |
— How long do you think it will be _______ the USA recovers from the losses of the financial crisis?
— Perhaps four or five years.
| A．when | B．since | C．that | D．before |