________ themselves awake they sat on the floor and told each other stories.
| A．Keep | B．Keeping |
| C．To keep | D．To have kept |
It is morning _____ we have four classes, not afternoon.
| A．when | B．which | C．that | D．why |
Mother told Jim to watch the milk until it boiled and then _________ off the gas.
| A．turn | B．turning | C．turned | D．having turned |
The idea puzzled me so much that I stopped for a few seconds to try to _______.
| A．make it out | B．make it off | C．make it up | D．make it over |
Three days after Mrs White’s _______ necklace was found, she was _____ it.
| A．lost; robbed | B．Missed; robbed of |
| C．lost; robbed of | D．missing; robbed |
He will stop showing off, if no notice _________of him.
| A．is taken | B．will be taken | C．takes | D．has taken |