—What do you think of the news in today's newspaper?
—We shouldn't ________ the trouble of helping others only because what we do may invite trouble.
A．knock off B．take off
C．keep off D．break off
—I think that every need of the customer should be attended to.
—________.
A．I'd love to B．I'm with you on that
C．It's my pleasure D．It's up to you
No matter how healthy you ________ be, you need to consult a doctor from time to time.
A．should B．will C．must D．may
Many dog owners treat their pets like human beings, ________ if they do not have children of their own.
A．absolutely B．especially
C．eventually D．extremely
I really don't know how to thank you, but for your help, I ________ my lost necklace.
A．couldn't have found B．mustn't have found
C．couldn't find D．wouldn't find
After ________ seemed an endless wait, it was her turn to enter the interview room.
A．what B．why C．that D．how
