It suddenly _____ to me that we could ask our neighbors to help us.
| A．thought | B．happened | C．came | D．occurred |
The evening news comes on at seven o’clock and ______ only thirty
minutes.
| A．keeps | B．continues | C．lasts | D．finishes |
----- Must I turn off the gas after cooking?
----- Of course. You can never be ______ careful with that.
| A．enough | B．too | C．so | D．very |
He told me he had been offered a well-paid ____, but he refused it.
| A．business | B．service | C．work | D．position |
He has written a lot of books, but ______ good ones.
| A．any | B．some | C．few | D．many |
Everyone here will thank the firefighters for the things they do to prevent fires ______ the environment safer.
| A．to make | B．make | C．making | D．from making |