Tom, clean up the broken glass _________ someone walks on it.
| A．since | B．when | C．before | D．as |
To our surprise the stranger _____ to be an old friend of my mother’s.
| A．turned out | B．turned up |
| C．set out | D．set up |
I asked the boss for a month’s holiday and, _____ it or not, he agreed.
| A．believe | B．to believe | C．believing | D．believed |
By the time you arrive home, I ____, so please don’t make any noise when you come in.
| A．shall have been sleeping | B．shall have slept | C．shall sleep | D．shall be sleeping |
It’s a bad practice to ____ children much money as a New Year gift.
| A．promise | B．permit | C．admit | D．allow |
____ the help of experienced career instructors, this type of job-hunting training ____ to be very efficient.
| A．By; has proved | B．With; has proved | C．Under; is proving | D．With; is proved |