Let’s learn to use the problem we are facing________a stepping-stone to future success.
| A．to | B．for | C．as | D．by |
Now there’s a system _________ the waste is disposed of using the principles of ecology.
| A．when | B．which | C．that | D．where |
His son is very naughty and has formed some bad habits.I think he should .
| A．cure them of him | B．cure him of them |
| C．cure them off him | D．cure him off them |
Mary often does some translation work to earn extra money, which half of her income.
| A．makes for | B．counts on | C．accounts for | D．consists in |
The examination results suggested that Iin poor health,so the doctor suggested that I more exercises to improve it.
| A．was;took | B．was;take | C．be;took | D．be;take |
—Can those at the back of the classroom hear me?—No problem, sir !
| A．seat | B．seating | C．seated | D．sit |