1 . Ladies and gentlemen, I________（update）you on the current news at BBC channel 4 at 7:00 pm tomorrow. (所给词的适当形式填空)

2 . We can’t go hiking this time tomorrow, because we ________________(sit) an exam. （所给词的适当形式填空）

3 . 明天上午十点我要去机场给一个朋友送行。

I________________at the airport at ten tomorrow morning.

4 . —Can I see you at three this Friday, Peter?
—Sorry, I _____________________ (give) a lecture at that time. How about Saturday? (所给词的适当形式填空)

5 . The presenter ________ (demonstrate) his project at 15:00 next Monday. (所给词的适当形式填空)

6 . While AI enthusiasts promise us a bright future ____________________, these undoubted benefits also bring concerns and fears. (根据句意填空)

7 . — Can I use your computer this afternoon?
— Sorry, I _________(take) an online class at that time. (所给词的适当形式填空)

9 . Dad often stands on the platform to pick us up.
→ —Mom, is Dad coming to pick us up?
—Yes, I am sure he ____________ on the platform when we pull into the station. (用正确的时态改写句子)

10 . I met my fans in my office yesterday.
→ —The president will come to attend your lecture at 10: 00 tomorrow.
—I’m sorry, by then my lecture will have just ended and I _____________ my fans in my office. (用正确的时态改写句子)