The mother often tells her son to be a good boy， warning him to ______ trouble.
| A．hold back from | B．keep out of |
| C．break away from | D．get rid of |
She spoke very confidently because she wanted to make a great on her employer.
| A．influence | B．pressure | C．impression | D．Effect |
The explorer got a disease in blood for the of vegetables and fruit.
| A．sake | B．lack | C．ignorance | D．benefit |
Are you going to the challenge of lasting a whole week without arguing.
| A．take up | B．get up | C．stand up | D．make up |
You can’t go out since you haven’t finished your homework; ______, it is a stormy night.
| A．however | B．suddenly | C．immediately | D．besides |
Tom worked very hard, ______ that he would be able to buy a car of his own in two years.
| A．hoped | B．to hope | C．hoping | D．and hoping |