Thực hiện các phép tính:

a. 4x²(5x³ – 2x + 3)

b.( 2x +5)( 3x -2)

c.  .

1. The tourists ____________ gathered their things and ran to the bus stop. (HURRY)
2. We were ____________ at the scenery. (AMAZE)
3. Would you like to ____________ this institute? (ATTENDANCE)
4. This blouse costs ____________ 99,000VND. (APPROXIMATE)
5. He is considered one of the greatest ____________ of the country. (HEROIC)
6. It is an ____________ journey. (INTEREST)

1. “What do you buy at the bookstore today?”, Dave asked me.
2. Unless you work harder, you will fail in the exam.
 If you 
3. The girls have not seen their father for ten months.
The last time the girls 
4. The teacher gives us a lot of exercises.
We wish 

1. playing as/ tennis player/ since 1990s/ a professional/ She has been/.
2. with their children/ for parents/A teacher should / to do/ suggest suitable tasks/.

1. It’s not worth trying to make her change her mind.
There’s no .
2. I last spoke to Jack when I sold him my old car.
I haven’t 
3. “Why don’t you complain to the company, Peter?’ said William.
William suggested
4. I would prefer you not to smoke in here.

 I’d rather

1. is enormous but / I think / nuclear energy / the environment / dangerous to /.
 I think
2. recent bill / because / I’m worried / it’s so enormous / about my most /.I’m