23/. My mother began cooking for the party an hour ago.
→ My mother has begun cooking for the party for an hour.
S + have/has + Ved/3 + for/since + time.
24/. “I can do something to help you,” Susan said to Michael.
→ Susan offered doing something to help Michael.
offer sth to sbd
25/. We wanted to take a break. However, our teacher didn’t allow.
→ Our teacher didn’t let us take a break.
let sb do sth : cho ai đó làm gì
26/. I don’t have ticket. I won’t be able to go to the concert tomorrow.
→ Not having ticket, I won’t be able to go to the concert tomorrow.
* V-ing ở đầu câu là danh động từ, làm chủ ngữ, nhấn mạnh câu.