how to do the homework, I went to ask my teacher for help.
A. Not to know B. Not knowing C. Knowing not D. Not known
You’d better leave the windows _________ and the door ___________.
A．open, closed B．opened, closing
C．opened, close D．open, close
We should spend as much time as we _______ over our lessons.
A．go B．can to go C．can go D．can going
It’s _______ much more than I ________ it.
A．cost, paid B．spent, paid for C．worth, paid D．worth, paid for
She looked unhappy because she had made ________ mistakes in the English test.
A．two scores B．scores of
C．two scores of D．score of
The taxi ________ I usually took to my office was destroyed in a traffic accident?
A．in which B．by which C．which D．with which
