He was last seen _________in his office at about 7:15 p.m..
| A．work | B．working |
| C．to work | D．worked |
---Tom, why not stop ________ a rest?
--- Oh, no, Mum. It’s so exciting that I can’t stop ___ the kite.
| A．having; flying | B．to have; to fly |
| C．having; to fly | D．to have; flying |
Yesterday Millie _her MP4 to me and said I could _it for a week.
| A．lent; borrow | B．borrowed; borrow |
| C．lent; keep | D．borrowed; keep |
Do you know how long it has been _________service ?
| A．on | B．at | C．in | D．for |
—Where is Mr Green now ? —He ___ to Hong Kong .
| A．goes | B．will go | C．is going | D．has gone |
Hego swimming when he lived here．Now,he_______running.
| A．used to ; is used to | B．used to;used to |
| C．used to; was | D．used to;use to |