A.The train had left the station before I came.B.I came before the train left the station.C.I came to the station in time to catch the train.D.My train left after I came to the station.

A.The teacher asked his students why they always made terrible mistakes.
B.The teacher made his students not always make terrible mistakes.
C.The teacher realized that his students always made terrible mistakes.
D.The teacher complained about his students making terrible mistakes.

A.Luisa may be on cloud nine when his wife gives birth to their first child.
B.Luisa can be very on cloud nine when his wife gives birth to their first child.
C.Luisa could be on cloud nine when his wife gives birth to their first child.
D.Luisa must be on cloud nine when his wife gives birth to their first child.

A.a substitute
B.a variety
C.a means
D.a solution

A.revise
B.recall
C.repeat
D.revive

A.No matter how serious their arguments are, they are a close-knit family.
B.Without serious arguments among the members, they would be a close-knit family.
C.Unless they have serious arguments, they won't be a close-knit family.
D.If the family members hadn't had serious arguments, they would be a close-knit family.

A.Hardly had the date of the conference been chosen when invitations were sent out.
B.After choosing the date of the conference, invitations were sent out.
C.Before sending out invitations, the date of the conference been chosen.
D.Choose the date of the conference before sending out invitations.

A.speculation
B.attraction
C.ease
D.consideration

A.passing time studying
B.hardly trying to work
C.behaving well
D.passing time in a relaxed way

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