，please start the work tomorrow.
| A．If you are convenient | B．If it is convenient for you |
| C．If it is convenient of you | D．If convenience |
The teacher came to the classroom and demanded ____ what had happened.
| A．his students to tell him | B．being told |
| C．telling him | D．to be told |
A love marriage, however, does not necessarily ____ much sharing of interests and responsibilities.
| A．take over | B．result in | C．hold on | D．keep to |
Doing your homework is a sure way to improve yor test scores, and this is especially true ____ it comes to classroom tests.
| A．before | B．since | C．when | D．after |
I haven' t seen Mary these past few days. I m afraid she ____ herself for some time.
| A．isn't feeling | B．hasn' t been feeling |
| C．hadn't been feeling | D．wasn't feeling |
Not far from the club, there was a girden, ____ owner seated in it playing bridge with his children every afternoon.
| A．whose | B．its | C．which | D．that |