Global warming ________ cause huge climatic changes and possibly a new ice age.
| A．is possible to | B．may possible | C．is likely to | D．is maybe to |
I’m glad to see the rapid progress ______in science and technology in the past decade.
| A．to make | B．making | C．made | D．having made |
When we plan our vacation , mother often offers______suggestions.
| A．careful | B．practical | C．concerned | D．promising |
Once there was ______time _____people walked without shoes.
| A．a ;that | B．a ;when | C．the ;that | D．the ;that |
________ came that another spaceship Shenzhou VII was successfully lifted off in our couvtry.
| A．word | B．Word | C．The word | D．Words |
________ their son away to college, the couple got more room in the house.
| A．As | B．For | C．Through | D．With |