bt1 :điền less hoặc fewer vào chỗ trống
1) ba work ....... hours than trang a week
2) they have ....... fruit than us 
3) he has ....... days off than any one in the factory
4) there are ........ eggs in the fridage now
5) there are very busy, they have ..... time t0o reast than
6) she buys ..... book than her sister
7) childrer should spend ....... time playing computer game
8) he drinks....... coffee than me a day 
bt2 : cho dạng đúng của các động từ trong ngoặc
1) our class (start) at 7.00 and finish at 11.15 every morning
2) how often your father (swim) ?
    he (go) swimming twice a weck
3) my brother (like) playing the piano
4) his father ( watch) tv every day and ne (do) too
5) i (meet) her at the movie theater tonight