1. You should read problem books to pass the test.

2. I watch TV on the sofa leaning against the back of the sofa.
3.You should make your Father shoes shined.
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Are the three sentences all grammatical?

1. What are "problem books"?

2. Delete "on the sofa."

3. "You should shine your father's shoes." OR "You should make your father's shoes shine!"

Questions?

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1. You should read reference books to pass the test.

2. I watch TV leaning against the back of the sofa.
3. You should make your father's shoes shined.

Thank you, Writeacher. I corrected my sentences. Do they look correct now?

What is the English words for the books which has many test problems which were used for taking tests?

In sentence 3, it should be "shine" not "shined."

Those books could be test-prep books, textbooks, or reference books, as you said.

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I would suggest that you use - Leaning back against the sofa, I watch the TV.

This indicates that it is you leaning against the sofa, not the TV.

To determine if the three sentences are grammatically correct, we can analyze each one separately.

1. "You should read problem books to pass the test."
This sentence is grammatically correct. It follows the subject-verb-object structure, and all the words are used appropriately.

2. "I watch TV on the sofa leaning against the back of the sofa."
This sentence is not grammatically correct. It contains a repetition of the word "sofa." To fix this, you can rephrase it as: "I watch TV on the sofa while leaning against its back."

3. "You should make your Father shoes shined."
This sentence is not grammatically correct. The phrase "make your Father shoes shined" lacks proper syntax. To correct this, you can say: "You should have your father's shoes shined" or "You should get your father's shoes shined."

In conclusion, the first sentence is grammatically correct, but the second and third sentences require some revisions to adhere to proper grammar rules.