It is helpful for children to form a good habit by asking them to _____ all the toys after they finish playing.
| A．put off | B．put down | C．put away | D．put out |
.Nobody could______it when the bull broke into the shop and attacked two customers with its horns. The others just hurried away from it.
| A．make | B．help | C．aid | D．assist |
He appears ______ a long time. He is impatient for my arrival.
| A．to wait | B．to be waiting | C．to have waited | D．to have been waiting |
Every device ______in the plane must be designed and made with great care so as to make sure that nothing goes wrong in operation.
| A．fitted | B．to be fitted | C．fitting | D．being fitted |
He left home early only______he was late as he went a wrong way.
| A．found | B．to find | C．finding | D．being found |
He looked around and caught a man _______ his hand into the pocket of a passenger.
| A．put | B．to be putting | C．to put | D．putting |