Our playground is not so tidy and beautiful as before. Students must _____ dirty things on it.
| A．be stopped to throw | B．be stopped from throwing |
| C．stop to throw | D．stop from throwing |
The French fries were invented.
A、by mistake B、at present C、in a minute
All mobile phones mustduring the meeting.
A、turn off B、are turned C、be turned off
The new slippers are usedseeing in the dark.
A、to B、for C、as
—How can I get on well with my classmates?
—Try to be friendly to them. That will make it much.
A、easily B、more easily C、easier
He decided to study hard__________ catch up with others.
| A．as a result | B．so that | C．in order that | D．in order to |