a. My father usually takes me to the theater once a month.

=> how often does your father takes you to the theater?

dat cau hoi cho tu gach chan

a. My father usually takes me to the theater once a month. ( gach chan: once a month)

=>HOW OFTEN DOES YOUR FATHER TAKE YOU TO THE THEATER?

a. She wants to join the English club to improve her speaking and listening skill.

=> how does she improve her speaking and listening skill?

dat cau hoi cho tu gach chan

a. She want to join the English club to improve her speaking and listening skill.( gach chan: to........................ club)

=>WHY DOES SHE WANT TO JOIN THE E CLUB ?

What is she doing ?

dat cau hoi cho tu gach chan

MInh goes swimming three times a week( gach chan: three................end

=>How often does Minh go swimming ?

What does your father like playing?

a. A fried rice costs thrity thousand dong( gach chan: thrity thousand dong)

=> how much does a fried rice cost?

1lan is family has five people.

..............How many people/members are there in Lan's family........................................

2There are going to visit Nha Trang for 2 weeks.

..........How long are you going to visit Nha Trang?........................................................................

1 Lan's family has five people.

=> How many people does Lan's family have ?

2They are going to visit Nha Trang for 2 weeks.

=> How long are they going to visit Nha Trang ?

1. Lan is family has five people

\(\Rightarrow\) How many people does lan"s family have ?

2. They are goingto visit Nha Trang for 2 weeks 

\(\Rightarrow\) How long are they going to visit Nha Trang ?

dat cau hoi cho tu gac chan

Nga want to go shopping( gach chan: go shopping)

=>WHAT DOES NGA WANT ?

where does Nga want to go?

1, They went to the cinema last week

=> Where did they go to last week?

dat cau hoi cho tu gach chan:

1,They went to the cinema last week.

\(\Rightarrow\)Where did they go last week?