—I didn't go to see the doctor yesterday.
—But you ________.
| A．ought | B．ought to |
| C．ought to be | D．ought to have |
Aunt LI has arrived.Do you expect __ to pay her a visit?
| A．going | B．go | C．to go | D．that you go |
He hasn't decided __ to London.
| A．whether to sail or fly | B．if to sail or fly | C．whether sailing or flying | D．if sailing or flying |
In many ways, riding on a bike is simliar to ___.
| A．driving a car | B．when you drive a car | C．drive a car | D．when driving a car |
We did the job as fast as we could, ___ to finish it earlier.
| A．hoping | B．to hope | C．hoped | D．being hoped |
We had better not __ them busy all day long.
| A．to keep | B．keeping | C．kept | D．keep |