Sure, let’s complete the questions based on the image:

**Question 8:** What does this sign say?
- A. Don't step on the wet floor.
- B. Don't make the floor wet.
- C. Wet floor makes you cautious.
- D. Be careful as the floor is wet.

The image of the sign indicates that you should be cautious because the floor is wet, so **D** is the correct choice.

**Question 9:** The correct sentence to complete the text is most likely:
- A. because they can shop whenever they have free time or convenient to them
- B. They just stay at home and browse, and order
- C. Customers can also check items before paying
- D. and use live streaming to assure buyers of quality in real time

The sentence before this discusses how people don’t have to go to the shops anymore. **B** seems to fit well here.

**Question 10** and **Question 11** don't have the text visible to accurately choose.

**Question 12** seems to align with how they "offer a wider variety of products" and ensuring quality so potential answers could be:
- **D. and use live streaming to assure buyers of quality in real time**

**Primary Stress:**

**Question 13:** The word that differs in primary stress is:
- A. Japanese (ja-PA-nese)
- B. difficulty (DI-fficulty)
- C. Equality (e-QUA-li-ty)
- D. conservation (con-ser-VA-tion)

**A** is likely the word that differs in primary stress.

**Question 14:** Similarly:
- A. pollute (po-LLUTE)
- B. broadcast (BROAD-cast)
- C. visit (VI-sit)
- D. borrow (BOR-row)

**A** differs in primary stress.

These are based on standard patterns, but context matters for accuracy.