It’s very important for a student to ________ a good state of mind while taking the college entrance examination.
| A．keep out | B．keep on | C．keep up | D．keep off |
The skin is an essential part of your body and is ____ you feel cold, heat or pain.
| A．where | B．which | C．what | D．how |
---- Tom wants to be another Obama after he graduates from school.
---- That sounds great, but how can he ____ a person like him if he goes on like this?
| A．change | B．turn | C．get | D．make |
If you happen to see the process of cooking in a restaurant, you might see the cook using rubbish oil, which is a common _____ in China nowadays.
| A．sense | B．rule | C．practice | D．activity |
He does help others, but he always expects returns ____. As a result, nobody will accept anything from him.
| A．at no time | B．in no time | C．for no time | D．after no time |
How can you expect others to believe you when you ___ constantly ___ lies!
| A．have; told | B．had; told | C．are; telling | D．were; telling |