1.I have been waiting for you for two hours
2It hasn't snowed here since 1998(не уверен на счёт snowed)
3.He has been sleeping since ten o'clock.It's time he woke up
4 не знаю
5 не знаю
Think of-задуматься над чем-то, Think about-задуматься об чем-то
<span>1. Am I going to play football? (Are you going to play football?)
2. Are they going to take a Number Five bus?
3. Are we going to see a new film?</span>
<span>1) In the morning, Andy usually has….
But today he is having….
2) Sandra sometimes falls off her bike. Today she isn't riding her bike.</span>