–I don’t suppose he could have done well in the exam last week, _____? --______, he almost failed the exam.
He describes everything in _______ order, which makes ________ excellent impression upon us.
— Unfortunately, I left my keys at home. — ________. I have an extra set.
Nowadays many new couples like to ____ their wedding photos and hang them on the wall.
Generally speaking, the publishers will send you a specimen copy of their new books when ________.
Using bicycles ______ greatly to people’s physical fitness as well as easing traffic jams.