- Chồi lá tất nhiên nhỏ hơn chồi hoa.
- Chồi lá về sau phát triển thành lá, chồi hoa về sau phát triển thành hoa.
- Chồi hoa thì có mầm hoa, thay vì đó, chồi lá có mầm lá .

Vì \(\hept{\begin{cases}\widehat{A}+\widehat{B}=50^o+30^o=180^o\\\widehat{C}+\widehat{B}=40^o+140^o=180^o\end{cases}}\)mà \(\hept{\begin{cases}\widehat{A}\text{ và }\widehat{B}\text{ là 2 góc trong cùng phía}\\\widehat{C}\text{ và }\widehat{B}\text{ là 2 góc trong cùng phía}\end{cases}}\)

\(\Rightarrow\hept{\begin{cases}AD//BE\\CD//BE\end{cases}}\Rightarrow AD//CD\)

1 Yesterday the plane took off earlier than I expected

2 My mother looks after us more carefully than my father

3 They cut the big cake into smaller parts than I thought

4 My sister even tells me off more often than my mother does

5 Who saw you off yesterday?

6 It is cold today so I put on more warm clothes than usual

7 Yesterday my mother picked my up later than usual

8 You are the pretties girl I have ever known

9 Unless you listen attentively to your teacher, you won't catch up with your friends

10 By far, "The Little Prince" has been my favorite book

39 be on time for your interview

40 tall is she

41 What is she like?

42 have you been in this city?

43 is the price of those books

44 How did she greet friends?

45 What did she walk to the station for

2 is going to b

3 am writing

4 has also typed

5 has been planting

6 has written

7 have just heard

8 does the play start

9 have worked

10 have practise

11 go