This is the knife _____ I cut apples yesterday.

Today Bob contradicted Ms. Li, our math teacher, in class, _____ made her angry with him.

— How do you like Guilin?
— It is the most beautiful place ______ I have ever been to.

He suddenly fell ill, ______ prevented him from attending his friend’s wedding.

—We’ll take the conditions into careful consideration ______ you have attached to this contract.
—Thanks. Hope for further cooperation.

Who is the person 　　　　　is standing at the school gate ?

____ is known to everybody, the moon travels round the earth.

This is my dear teacher without_________help I couldn’t have passed that difficult exam.

I’ll never forget the day_________ we spent happily together

We’ve booked a room in the centre of town for the guests _____ they can stay for three days.