Life is always full of hardships. _______ a better life, we need positive energy.
| A．Live | B．To live | C．Living | D．Lived |
At present，there is little doubt ________ short message plays an increasingly important role in our lives．
| A．whether | B．if | C．that | D．which |
— Are you a teacher?
— No, but I ______. I worked in a middle school for three years.
| A．am | B．will | C．do | D．was |
— Is your mother going to the supermarket？
— No，______.
| A．she doesn’t | B．she’s cooking | C．she gets by bus | D．to a tailor’s shop |
______，I will help you with your work.
| A．If I am possible | B．If it possible | C．If possible | D．Possible |
You’d better put things back _______. Otherwise, it will be difficult to find things.
| A．in danger | B．in trouble | C．in place | D．in a hurry |