Water can absorb and give off a lot of heat without big changes in temperature,thus creating a___environment.
| A．peaceful | B．sensitive |
| C．common | D．stable |
We believe scientists will ________a way to solve the problem of air pollution.
| A．set off | B．put off | C．come up with | D．catch up with |
Hiswife______hischildrenwasinvitedtotheparty.
| A．and | B．or | C．aswellas | D．butalso |
—What’s the matter _______Mike? He is wet through.
—His car ran _______the river.
| A．with, into | B．for, in | C．with, to | D．to, at |
Pleaseask________nottoskateonthethinice.It’sverydangerous.
| A．they | B．them | C．their | D．theirs |
Wouldn’titbe______wonderfulworldifwecouldlivein______peace?
| A．a;the | B．the;不填 | C．a;不填 | D．the;the |