It's essential that he ........accepting responsibility.
A.starts
B.starting
C.to start
D.start

He ate as if he ........................for a few days.
A.didn't eat
B.wasn't eaten
C.hadn't eaten
D.hadn't been eaten

Suppose you ................the lottery last night. What would you have done?
A.had won
B.won
C.would have won
D.win

The law requires that everyone..........his car checked at least once a year.
A.has
B.had
C.have
D.will have

Much of what you were told __________ inaccurate.
A.are
B.was
C.did
D.done

Both the whale and the manatee __________ federal protection.
A.needs
B.need
C.is needed
D.needing

"It’s beginning to rain.” "................, we won’t be able finish the ball game.”
A.if it stops
B.should it stop
C.unless it stops
D.if it didn’t stop

If I ................,I’’ll let you know.
A.am staying
B.will stay
C.do stay
D.would stay

..................me and I’ll expain the homework to you.
A.call
B.I you call
C.calling
D.to call

If I...................of his arrival , I....................him.
A.had known----will have met
B.knew-----would have met
C.know----would met
D.had known---- would have met