It’s quite normal to ten percent of the cost of a building for a period of six months or so, in case faults are found in it.
| A．keep up | B． keep away | C．keep off | D．keep back |
Only with this method_____to make progress in your maths study .
| A．you can hope | B．you did hope | C．can you hope | D．did you hope |
The best way for starting a person’s breathing is to use______way
| A．face to face | B．mouth-to-mouth | C．face-to-face | D．mouth to mouth |
The question will also calm the person ,______him or her know that help is on the way .
| A．to let | B．lets | C．letting | D．to have let |
.His words were_____out by loud cheers from the crowd
| A．drowned | B．cried | C．expressed | D．crowded |
.—We usually go hiking for vacation. I like it, but I want to try something more challenging this year.
—___________
| A．Let’s go | B．Cheer up | C．Like what ? | D．Take care |