The father as well as his three children ______ skating on frozen river every Sunday afternoon in winter.
| A．is going | B．go | C．goes | D．are going |
---Will the Smiths go abroad this summer?
---No, they finally decided _______.
| A．to | B．not going | C．not to | D．not to be going |
The patient was warned _______oily food after the operation.
| A．to eat not | B．eating not | C．not to eat | D．not eating |
Charles Babbage is generally considered _______the first computer.
| A．to invent | B．inventing | C．to have invented | D．having invented |
The matter had better _______ as it is.
| A．leave | B．being left | C．leaving | D．be left |
We’re looking forward ___________the photo exhibition.
| A．to visiting | B．to visit | C．to having visited | D．visiting |