He spends a lot of time ___ the TV set.
| A．in watching | B．on | C．in front of | D．on watching |
The queen will visit the town in May, _____she will open the new hospital.
| A．when | B．then | C．while | D．but |
Lu Xun was ___________ medical student before he turned ___________ great writer.
| A．the; the | B．the; a | C．a; / | D．a; a |
Many people have been ill from a strange disease these days,_________we’ve never heard of before.
| A．one | B．that | C．it | D．this |
The sunlight came in____________ the windows in the roof and lit up the whole room.
| A．through | B．across | C．by hour | D．each hour |
She stepped into the bedroom quietly_________she might wake up her roommates.
| A．for fear that | B．so long as | C．on condition that | D．in order that |