Đáp án+giải thích các bước giải:

31. I always keep the window open so as to letting the fresh air in.

A. keep

B. open

C. letting

D. in

[ letting $\Rightarrow$ let ]

32. Lan tidied the bedrooms and cleaned the windows since yesterday.

A. tidied

B. bedrooms

C. windows

D. since

[ since $\Rightarrow$ bỏ since ]

33. He is going to get to work earlier in order impress the boss.

A. is

B. get

C. order

D. the

[ order $\Rightarrow$ order to ]

V. Rewrite the sentences so that they are nearest in meaning to the sentence printed before them.

34. We will invite some old teachers to our class meeting.

$\Rightarrow$ Some old teachers will be invited to our class meeting.

35. “I can do this test”, he said.

$\Rightarrow$ He said he was going to do a test the following day.

36. Will you open the door, please.

$\Rightarrow$ Would you micd if I opened the door?

37. Can I sit here?

$\Rightarrow$ Do you mind if I sit here?

38. People recycle car tires to make floor covering.

$\Rightarrow$ Car tires are recycled.

39. We can reuse all tea leaves. 

$\Rightarrow$ All tea leaves are reused.

40. Learning English is interesting.

$\Rightarrow$ It's interesting to learn English.

Chúc bạn hok tốt ~~~

Nếu được thì cho mk trả lời hay nhất ạ .🥰

31. → let ( so as to + Vo )

32. → tidie 

33. → order to ( in order to → để làm gì )

34. → asked ( câu điều kiện loại Ⅱ, cả 2 mệnh đề là QKĐ )

35. → left ( since + mốc thời gian trong QK nên sau since xài QKĐ )

36. → would you mind + V-ing + ....?

37. → do you mind if I ( lớp 8 đã học bài này rồi )

38. → car tires are recycled to make floor covering

39. → all tea leaves can be reused

40. → It's interesting to learn English ( it + be + adj + to do something )

XIN HAY NHẤT :>