A.to have 
B.having
C.must 
D.might

A.repair 
B.repaired
C.repairing 
D.to repair

A.made；is  sailing
B.has made；is  sailing
C.made；sails
D.has made；sails

A.Work
B.Worked 
C.Working
D.To be working

A.runs
B.is  running
C.run
D.ran

A.is being raised
B.is risen
C.is being rose 
D.is raising

A.to invite
B.of being invited 
C.to be invited
D.having invited

A.No, I’m perfectly all right.
B.You’re all right.
C.Don’t worry about it.
D.Not at all. Thank you

A.have gradually being exhausted
B.are gradually exhausted
C.has been gradually exhausted 
D.are being gradually exhausted

A.Yes, please 
B.No, I’m sorry
C.Certainly not
D.All right

A.reflects
B.reflected 
C.is reflected
D.is reflecting