Tom’s mother is busy _____ breakfast for Tom.
—Mr. Li ______ to Mary carefully when I entered the classroom this morning. —He is very patient ______ he is young.
— I’ll call your parents if your homework ________ before four o'clock today. — Sorry, Mr. Li. I’m doing it right now.
—Excuse me, Could you tell__________? —Yes. Go along this street and you will find it on your left.
What bad weather! The plane will _______ at 8:00 o’clock this evening.
—Do you know the girl __________ is standing __________ the tree? — Yes, she is my friend, Zhang Ying.