Cleaning women in big cities usually get by the hour.
| A．pay | B．paying | C．paid | D．to pay |
_____ it or not, his discovery has created a stir in scientific circles.
| A．Believe | B．To believe | C．Believing | D．Believed |
After the Arab states won independence, great emphasis was laid on expanding education, with girls as well as boys _____ to go to school.
| A．to be encouraged | B．been encouraged |
| C．encouraged | D．be encouraged |
There's a man at the reception desk who seems very angry and I think he means_____trouble.
| A．making | B．to make | C．to have made | D．having made |
That was so serious a matter that I had no choice but _____ the police.
| A．called in | B．calling in | C．call in | D．to call in |
Mark often attempts to escape _____ whenever he breaks traffic regulations.
| A．having been fined | B．to have been fined |
| C．to be fined | D．being fined |