Helping others is a habit，______you can learn even at an early age.
A it B. that C. what D. one
He hasn’t got any hobbies，_______ you call watching TV a hobby.
| A．when | B．if | C．unless | D．since |
---What bad luck! I had a cut in salary yesterday.
--- _____. I warned you not to be late repeatedly but you ignored it.
| A．By all means | B．Never mind |
| C．Luck you | D．You deserve it |
It was in the small house ___ was built with stones by his father ____ he spent his childhood.
| A．which; that | B．which; which |
| C．that; which | D．where; that |
After pains-taking efforts, he eventually concluded that the principle he stuck _______ true.
| A．to proved | B．to proving |
| C．to be proved | D．to being proved |
“Only two centimeters higher, ______ break the world record,” encouraged the coach.
| A．or you will | B．you will |
| C．will you | D．and you will |