I _____ some knowledge of cooking just by watching my mother doing it.
| A．put up | B．looked up | C．picked up | D．set up |
I found a bucket, ______ it in the sink and turned the tap on.
| A．put | B．putting | C．to put | D．having put |
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 |