—I had a bad cold. I think you’d better ________ to see a doctor.
| A．go | B．to go | C．going | D．went |
—How soon will you finish your homework?—________ an hour.
| A．In | B．On | C．With | D．For |
The reporter said that the UFO ________ from north to south when he saw it.
| A．was traveling | B．traveling | C．travel | D．traveled |
Hurry up, everyone ________ for you.
| A．waited | B．is waiting | C．waits | D．will wait |
Trees __________ on Tree Planting Day only.
| A．shouldn’t be planted | B．should not plant |
| C．shouldn’t be planting | D．not be planted |