_______ 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 |
It is said that a new play will be at the theatre.
| A．try on | B．filled on | C．had on | D．put on |
She used to when other people are talking.
| A．cut up | B．cut in | C．cut down | D．cut across |
This is the village where the hero was born and .
| A．grown up | B．raising | C．brought up | D．growing up |
A helicopter is able to and land straight up or down.
| A．take care | B．take over | C．take up | D．take off |
Don’t speak all at once, please .
| A．take a turn | B．take turning | C．take turns | D．take a turning |