Our school has about 100 computers, but only sixty percent ____ used regularly.
—What are you going to do this weekend?—________. If time permits, I may go to Shanghai to visit my friends.
— I’m sorry I didn’t make it to your party last night. —______, I know you’re busy these days.
After he retired from the office, Tom ______ painting for a while, but soon lost interest.
When the old man ______ to walk back to his house, the sun ______ itself behind the mountain.
The majority of visitors ______ in favor of his conclusion that the number of books published on the subject ______ simply surprising.