________，I have to put it away and focus my attention on study this week.
A. However the story is amusing
B. No matter amusing the story is
C. However amusing the story is
D. No matter how the story is amusing
—Can I have a talk with you at about 4 this afternoon，Mr Black?
—All right，I ________from a conference by then.I will be waiting for you.
A. will have come back B. will come back
C. have come back D. will be coming back
Fred is second to none in math in our class，but ______，he hardly passed the final math exam.
A. as a matter of fact B. as usual
C. right away D. believe it or not
—Do you think the phone is genuine?
—I don’t think it________be a fake，as this shop has a very goo
d reputation.
A. must B. can
C. might D. would
—Could I use your computer for a few moments，please?
—________.I'm not using it myself.
A. Come on B. It depends
C. Go ahead D. That's great
Professor Smith will come here
to give a speech.All the preparations must be________before 5 o’clock.
A. in time B. in sight
C. in place 
D. in control
