giúp e vs ạ

Here are the correct forms of the verb in brackets: 1. When you **go** into the office, Mr John **sits** at the front desk. (Simple Present) 2. Our English teacher **will explain** that lesson to us tomorrow. (Simple Future) 3. We **will be waiting** for you when you **get** back tomorrow. (Future Continuous and Simple Future) 4. What **will you be doing** at 7 p.m next Sunday? - I **will be practicing** my English lessons then. (Future Continuous) 5. When I **see** Mr Pike tomorrow, I **will remind** him of that. (Simple Present and Simple Future) 6. When you **came** today, I **was working** at my desk in Room 12. (Simple Past and Past Continuous - Note: the original sentence had incorrect verb forms) 7. He **will be working** on the report at this time tomorrow. (Future Continuous) 8. Please wait here until the manager **returns**. (Simple Present) 9. Don't leave until you **have seen** her. (Present Perfect) 10. The Browns **will be doing** their housework when you **come** next Sunday. (Future Continuous and Simple Future)