3. Listen and underline the letters that make the sound. Then say the words.

答案略

4. Write the sentences.
1) on Tuesday / went to the park / Daming
Daming went to the park on Tuesday.
2) Lingling / the Great Wall / visited / yesterday

3) walked to / this morning / Amy / a museum

4) cleaned / at the weekend / the house / Ms Smart

5) a T-shirt / on Wednesday / bought / Mary

2) Lingling visited the Great Wall yesterday.
3) Amy walked to a museum this morning.
4) Ms Smart cleaned the house at the weekend.
5) Mary bought a T-shirt on Wednesday.

5. Mime, ask and answer.

What did you do at the weekend?
I took some photos.

This is an English dialogue practice question, not a math question, but I'll provide the answer in the required format.
Answer:
One student mimes the action of taking photos.
The other student asks: What did you do at the weekend?
The first student answers: I took some photos.