The workers usually （）work at 8：30.

单项选择题The class （）over，we had a （）discussion.

A.been ...Heat
B.being ...heated
C.is ...Heating
D.be ...heated

单项选择题I （）this e-mail to tell you about my new office.

A.am writing
B.writing
C.writes

单项选择题My uncle （）in the IT Department.But now he （）on a plan for the marketing department.

A.works，is working
B.work，is working
C.is working，works

单项选择题I’d （）a beer too.Thank you.

A.like having
B.like to have
C.like have

单项选择题Each（）is a unit of both atomicity and consistency.

A.transaction
B.database
C.storage structure
D.schema details

单项选择题They overcame their difficulty （）working hard.

A.in
B.at
C.on
D.by

单项选择题My parents considered my friend to be a bad （）on me.

A.affect
B.effect
C.influence
D.control

单项选择题I used to （）on electricity，but I’ve switched to gas.

A.cook
B.cooking
C.cooked
D.cooks

单项选择题His supposition is good in theory （）cannot be put into practice.

A.and
B.or
C.but
D.while

单项选择题A reception party will be held in your （）this evening.

A.name
B.honor
C.place
D.position