Giải giúp mình và cho lời giải thích em cảm ơn nhiều 
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(Suộp ig EXERCISE (lock) the door when I left but I forgot .... 1. I remembered.... windows. 2. Please remember 3. I now regret... . 4. I was very tired. I tried.... 5. A: The photocopier doesn't seem to be working. B: Try ... 6. I rang to the doorbell but there was no answer. Then I tried...... door, but there was still no answer. 7. I need .... 8. He needs ..... 9. Have you ever watched people (try).... 10. Suddenly everybody stopped... 11. Your hair needs (cut)..... 12. Those workers stopped (drink).... (shut) the (post) the letter. (say) what I said. I shouldn't have said it. -(keep) my eyes open but I couldn't. ....(press) the green button. ..(knock) on the .(take) more exercise. .....(work) harder if he wants to make progress. .(catch) .(talk). fish? ...their coffee because they felt tired of their new work 13. He regrets(be) 14. We regret (inform) ...lazy last year. He lost his job. .you that we cannot approve your suggestion.