—Final exams are forcing many students to bum the midnight oil．
—That's true，but late has a bad effect on their health．
| A．making up | B．using up | C．looking up | D．staying up |
He is sitting _______ the room that is _________ the old tree.
| A．in the front of/in the front of | B．in front of/in the front of |
| C．in front of/in front of | D．in the front of/in front of |
The doctor told me to take this medicine ____.
| A．in time | B．on time | C．at times | D．by the time |
The little girl made money ___ selling flowers.
| A．in | B．on | C．with | D．by |
Our Chinese like eating moon cake ____ Mid-autumn Day.
| A．in | B．at | C．on | D．during |
Would you mind not picking up the flowers in the garden? They are ____ everyone’s enjoyment
| A．to | B．for | C．at | D．in |