My mother hates to commute to work by train because it is always crowded. (detests)

Here are suggested rewrites for the sentences using the given prompts:

4. My mother **detests** commuting to work by train because it is always crowded.
→ My mother **detests** the crowded train during her commute to work.

5. It’s impolite of them to wear hats in the pagoda. (shouldn’t)
→ They **shouldn’t** wear hats in the pagoda.

6. Prepare your lessons carefully, or you will not pass the first term test. (otherwise/ If)
→ **If** you do not prepare your lessons carefully, you will not pass the first term test.

7. Parents now have higher expectations of their children, so children are under more pressure than before. (therefore/because)
→ Parents now have higher expectations of their children; **therefore**, children are under more pressure than before.

8. The children don’t go to school in the snowy weather. (if)
→ **If** the weather is snowy, the children don’t go to school.