We are working _________ that everyone invited will turn up.
| A. assume |
B. to assume |
| C. in the assumption |
D. on the assumption |
_______ in 1636, Harvard is one of the most famous universities in the United States.
| A．Being founded | B．It was founded | C．Founded | D．Founding |
_______ time, he’ll make a first-class tennis player.
| A．Having given | B．To give | C．Giving | D．Given |
Remember _______ off the light when _______ to bed.
| A．turning, going | B．to turn, to go | C．turning, to go | D．to turn, going |
Stop _______ me to hurry up. I can only go so fast.
| A．to tell | B．telling | C．to have told | D．having told |
Certainly I posted your letter — I remember ______ it.
| A．posting | B．to post | C．to be posting | D．have posted |