Mary never does any reading in the evening ,______.
—Shall Tom go and play football?—Not unless he ______ his homework.
There is no doubt that the official was very weak-willed, otherwise he .
Helen didn’t mention anything about the dinner over the phone; she seemed about our appointment.
Many people see the computer as a “magic box”, and are not concerned with ______ it works.
There are two rooms on the first floor, is used as a reception room.