They had just finished the work _______ there was another one waiting for them.
| A．while | B．when | C．as | D．since |
Li Lei ______ English when he was in Canada. Now he can speak it freely.
| A．made out | B．picked out | C．made up | D．picked up |
He goes back home to see his parents ______ few weeks.
| A．every a | B．every | C．each | D．some |
—Excuse me. Is this the right way to the Summer Palace?
—Sorry, I am not sure, but it ____ be.
| A．must | B．can | C．might | D．will |
They looked at each other, ______.
| A．Astonishing | B．astonished | C．to astonish | D．astonishingly |
Mr. Smith, _______ of the ______ speech, started to read a novel.
| A．tired, boring | B．tiring, bored | C．tired, bored | D．tiring, boring |