In this school, ______ students work very hard, ______ they are very happy.

His father has worked in this factory________ he came here in 1985.
A. for                  B. since                C.when

_______we felt tired, _______we felt happy.
A. Though; but           B. Though; /           C. If; but

You will fail the English exam ________ you study hard.

—Tom, you look tired this morning. What’s wrong?
—I was so busy that I didn’t go to bed________12 o’clock last night.

____ it is rainy today, ____ he still works outside.

---_____ have you lived in England?    --- For 3 years.

---Will you go to tomorrow’s party?
---No. __________ I am invited, I will not go there, either.

I didn’t go to bed _______ my sister came back.

____ it is rainy today, ____ he still works outside.