I hated it when people don’t ___________ their promises.
| A．carry out | B．look out | C．run out | D．find out |
An awful accident, however, _____occur the other day.
| A．does | B．did | C．has to | D．had to |
Each of the students, working hard at his or her lessons,___to go to university.”“So do I.”
| A．hope | B．hopes | C．hoping | D．hoped |
He told me the news_____, believe it or not, he had earned $1 000 in a single day.
| A．that | B．which | C．as | D．because |
In that month, he earned as much as, if ____ than, $40 000.
| A．no more | B．not more | C．no much | D．not much |
The research is so designed that once _____ nothing can be done to change it.
| A．begins | B．having begun | C．beginning | D．begun |