Bài 1: 

1, am/is

2, is

3, are

4, are

5, aren't/are not

6, are not

7, is

8, is

9, are

10, are not

Giải thích:

Động từ tobe am thường đi với I (tôi)

Động từ tobe is thường đi với he, she, it (anh ấy, cô ấy, nó - số ít)

Đông từ tobe are thường đi với you, they, we (số nhiều)

Bài 2: 

1

(+) I come at home at 6 o'clock

(-)  I don't come at home at 6 o'clock

(?) Do you come at home at 6 o'clock?

2. 

(+) She brushes her teeth every morning.

(-) She doesn't brush her teeth every morning.

(?) Does she brush her teeth every morning?

3. 

(+) We go to the zoo

(-) We don't go to the zoo

(?) Do we go to the zoo?

4, 

(+) He misses his family.

(-) He doesn't miss his family.

(?) Does he miss his family?

5, 

(+) it rains heavily.

(-) It doesn't rain heavily.

(?) Does it rain heavily?

6, 

(+) the simple tense is easy

(-) The simple tense is not easy

(?) Is the simple tense easy?

7, 

(+) These computes are very modern.

(-) These computers are not very modern

(?) These are computers very modern?

* is : He / She / it / N số ít 

are : They / We / You / Our / N số nhiều 

am : I 

Ex `1` " 

`1` , am / is 

`2` , is 

`3` , are 

`4` , are 

`5` , are not 

`6` , are not 

`7` , is 

`8` , is 

`9` , are 

`10` , are not 

Ex `2` : 

Công thức thì HTĐ : 

( + ) S + am / is / are + ... 

( - ) S  + am / is / are + not + .... 

( ? ) Am / Is / Are + S + ... ? 

______________________

`1` . ( + ) I come at home at 6 o'clock 

( - ) I don't come at home at 6 o'clock 

( ? ) Do you come at home at 6 o'clock ? 

________________________________________

`2` . ( + ) She brushes her teeth every morning 

( - ) She doesn't brush her teeth every moring 

( ? ) Does she brush her teeth every morning ? 

________________________________________

`3` . ( + ) We go to the zoo 

( - ) We don't go to the zoo 

( ? ) Do we go to the zoo ? 

____________________________________________

`4` . ( + ) He misses his family . 

( - ) He doesn't miss his family 

( ? ) Does he miss his family ? 

___________________________________________

`5` . ( + ) It rains heavily 

( - ) It doesn't rain heavily 

( ? ) Does it rain heavily ? 

_________________________________________________

`6` . ( + ) The simple tense is easy 

( - ) The simple tense is not easy 

( ? ) Is the simple tense easy ? 

_________________________________________________

`7` . ( + ) These computers are very modern 

( - ) These computers are not very modern 

( ? ) Are these computers very modern ?