—What can I do for you?—I’d like to buy a present for my son, ______at a proper price but of great use.
The sunlight came in ________the windows in the roof and lit up the whole room.
________you have seen both fighters,________will win?
Someone called me up in the middle of the night,but they hung up ________I could answer the phone.
We offered him our congratulations ________his passing the college entrance exams.
The doctor will be free ________.