`1.` What about playing chess?

`->` Shall we + V

`=` What about + Ving

`2.` How many books does your bag have?

`->` How many + Ns + do/does + S + have?

`3.` She has a pen in her bag.

`->` HTĐ : S + V(s/es) + O

`->` Have : Có

`4.` My family doesn't have 4 people.

`->` HTĐ : S + don't/doesn't + V

`5.` Are there 3 floors in your school?

`->` Are there + Ns + ...?

`6.` There are keen on reading books.

`->` Tobe + keen on + Ving/st : Thích làm gì

`7.` It is the first time she has ever eaten Chinese food.

`->` It's + the first time + S + have/has + (ever) + P2

`1.` What about playing chess?

`2.` How many books do you have in your bag?

`3.` She has a pen in her bag.

`4.` My family doesn't have four people.

`5.` Are there three floors in your school?

`6.` They are keen on reading books.

`7.` It is the first time she has eaten Chinese food.

`-------`

`*` What/How about `+` V-ing?

`*` How many `+` N đếm được số nhiều `+` do/does `+` S `+` V`?`

`*` HTĐ: `(+)` S `+` V(s/es)

               `(-)` S `+` do/does `+` V

                `(?)` (Wh_question) `+` do/does `+` S `+` V`?`

`*` Are there `+` N đếm được số nhiều`?`

`*` Be keen on `=` Be fond of `+` V-ing: Thích cái gì

`*` It is the first/second... time `+` S `+` have/has `+` PII/ed

`*` HTHT: `(+)` S `+` have/has `+` PII/ed 

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