They did not find _____ to prepare for the worst conditions they might meet.
| A．worth their while | B．it worthwhile |
| C．it worth | D．it worthy |
Action must be taken to prevent that factory from ______ heavy smoke into the air.
| A．giving off | B．putting away | C．escaping from | D．dealing with |
— Can you see what is written on that board?
— Yes. It _______ “CAUTION: WET FLOOR”.
| A．reads | B．is read | C．writes | D．is written |
Could you tell us ______ happens when one student in class expresses a personal opinion _______ maybe upsets other students?
| A．that; that | B．what; where | C．that; where | D．what; that |
Let’s take _____ ten-minute break and have _______ drink of water.
| A．a; a | B．the; the | C．the; a | D．不填；the |
He _______ us that everything would go according to plan, but it turned out a failure.
| A．suggested | B．demanded | C．ordered | D．guaranteed |