—Shall I help you?
—Sure. Such a difficult case is ______ I could handle myself.
A. rather than B. less than C. or rather D. more than
Everyone likes to develop a close relationship ______ we trust each other.
A. which B. that C. where D. when
Jack decided to risk looking for a place to stay where he arrived, rather than booking ______.
A. in advance B. in return C. in fact D. in addition
Low-cost books in paper covers make ______ some of the world’s best literature to readers.
A. ordinary B. available C. comfortable D. necessary
He must be helping the old man to water the flowers, ______?
A. is he B. isn’t he C. must he D. mustn’t he
—Can I pay the bill by check?
—Sorry, Madam, but it is our managing rule that payment ______ be made in cash.
A. shall B. may C. will D. can
