—The boys hid themselves in the places ________ they couldn’t be found.
—How naughty(淘气的) they are!
| A．that | B．which | C．where | D．in that |
The president spoke at the business meeting for nearly an hour without ______ his notes.
| A．bringing up | B．referring to | C．looking for | D．trying on |
— Hi, what did our monitor say just now?
— Every boy and every girl as well as teachers who are to visit Water Cube ______ asked to be at school gate before 6∶30 tomorrow morning.
| A．is | B．were | C．are | D．was |
You’d better spend your time just on the things you find ______.
| A．worth doing them | B．worth being done |
| C．worthy of doing them | D．worthy of being done |
In communication, a smile is usually ______ strong sign of ______ friendly and open attitude.
| A．the; / | B．a; an | C．a; a | D．the; an |
It is demanded that the plan _____ out as soon as possible.
| A．must be carried | B．is to carry out | C．carried | D．be carried |