Scientists have many theories about how the universe_______into being.
| A．came | B．was coming | C．had come | D．would come |
I’m trying to break the _______ of getting up too late.
| A．tradition |
| B．convenience |
| C．habit |
| D．leisure |
The waterfall can be seen _______. Its sound may be heard _______ two miles. It looks even more beautiful _______, I think.
| A．at a distance; in the distance of; from a distance |
| B．from a distance; in the distance; at a distance |
| C．in the distance; from a distance of; at a distance |
| D．in the distance ; at a distance of; from a distance |
He looked around nervously to ________ that there was nobody following him.
| A．defend |
| B．confirm |
| C．doubt |
| D．insist |
It saves time in the kitchen to have things you use a lot _______ easy reach.
| A．near |
| B．upon |
| C．within |
| D．around |
Effective measures should ________ and laws should _______ to protect pandas. Otherwise, they are certain to die out.
| A．be taken; be passed |
| B．take; pass |
| C．be made; be taken |
| D．be set; be made |