【题目】______ for two days, Steve managed to finish his report on schedule.
A.To work
B.Worked
C.To be working
D.Having worked

【题目】 I ______ have worried before I came to the new school, for my classmates here are very friendly to me.
A.mightn't
B.mustn't
C.needn't
D.couldn't

【题目】At the meeting they discussed three different ______ to the study of mathematics.
A.methods
B.approaches
C.ways
D.means

【题目】Jane can't attend the meeting at 3 o'clock this afternoon because she ______ a class at that time.
A.will teach
B.would teach
C.has taught
D.will be teaching

A. To make an appointment.

B. To do some experiments.

C. To ask about his test results.

【题目】— Have you got the results of the final exam?
— Not yet. It will be a few days ______ we know the full results.
A.since
B.after
C.before
D.that

【题目】— Do you mind my taking this seat?
— _______.
A.Yes, sit down please
B.No, of course not
C.Yes, take it please
D.No, you can't take it.

【题目】______in painting, John didn't notice evening approaching.
A.To absorb
B.To be absorbed
C.Absorbed
D.Absorbing

【题目】
— Jack, you seem excited.
—______? I won the first prize in the English speech contest.
A.Guess what
B.So what
C.Pardon me
D.Who cares

【题目】I'd appreciate ______ if you would like to teach me how to use the computer.
A.that
B.it
C.this
D.you