请问用英语怎么说这几句话

我明天可以请你吃晚饭吗?
Could I have a dinner with you?

可以`/当然/不可以/我明天有事
Of course!/Sure,I'd love to./I'm sorry./I am busy tomorrow.

张老师家电话多少?
Do you know Mr./Mrs Zhang's phone number?

你手机多少号码?
Could I know your cell phone number?

你有张老师的手机号码?
Do you know/have Mr./Mrs Zhang's cell phone number?

你知道张老师的手机号码?
Do you know Mr./Mrs Zhang's cell phone number?

对不起,请先等一下,我接下电话.
Excuse me,one moment,I have to answer the phone.

能给我倒杯热水吗,是纯热水,不要温水.
Could you give me a glass of hot water?No warm water,please.

怎么了,你不舒服吗
What's up?Are you Ok?/What's the matter with you?

太难了！！！！！