37. Minh spends 2h doing his ...

38. Lan is the most intellignet in my class

39. i have not spoken to her since 2 years

40. since it was raining heavily, we were...

xl vì vt tắt nhiều vì mình k có nhiều tg

`29` . comsumer 

`30` . electricity

`31` . reduces

`32` . politely

`33` . joyful

`34` . generous 

`VIII)`

`35` . Many scientists and doctors have been working with sophisticated technology to develop robotic limbs that can be attached to humans.

`36` . Online shopping is a quick and convenient way to purchase things and is becoming more and more popular

`IX)`

`37` . Minh spends 2 hours doing his homework everyday.

`38` . Lan is the most intelligent person in my class.

`39` . I have not spoken to her for two years.

`40` . Bạn chụp thiếu từ viết lại rồi