`4.` Shall we go and see a film tonight ?

`-` Why don't we + V-inf ?

`=` Shall we + V-inf ?

`5.` Whose bag is this ?

`-` whose + N : cái gì của ai

`-` belong to : thuộc về

`6.` The snow will prevent the train from running.

`-` prevent sth from V-ing : ngăn cản cái gì làm gì

`7.` This is my sister's pencil.

`-` one's N : cái gì của ai

`9.` Shall we go this weekend ?

`-` How about + V-ing ?

`=` Shall we + V-inf ?

`10.` The government will propose changes to the income tax system soon.

`-` tobe likely to V-inf : có khả năng làm gì `=` will V-inf

`11.` I promise that I will go home before 10.

`-` promise that S + will + V-inf : hứa sẽ làm gì

`12.` She is not sure when the new course will start.

`-` the starting time : thời điểm bắt đầu

`13.` Shall we buy some furniture for the house ?

`-` What about V-ing ?

`=` Shall we V-inf ?

`14.` If you know Japanese , you will understand what I mean.

`-` Đảo ngữ CDK loại 1 : Should + S + V-inf + ... , S + will + V-inf

`-` CDK Loại 1 : If + S + V-es,s + ... , S + will + V-inf

`15.` Let's go out for a walk.

`-` Shall we V-inf ?

`=` Let's V-inf.