C, D, A, D, C

If the traffic hadn't been heavy, we wouldn't have been late

mẹ của bạn làm nghề gì?

assistant

2. Mr. Minh rides his bike to work at the moment. is riding
3. How many homework does Lan have every day? much
4. The Browns are traveling to Ho Chi Minh City in train. by
5. I'm twenty-one year old and I' m a student.years
6. A lot of my friends play soccer, but not much of them play tennis. many
7. Minh and his father are going to plant trees in the garden now. planting
8. Are they many students in your class?  there

who, which, which, who, who, whom, whom, that, in which, on which

By the time she reached the harbor, the ship had left.

If I were you, I would go home early in order not to worry other people.

If I had fallen, I would have broken my leg.