James had left the party before it even started. His friends didn’t know the reason.
→ James’ friends didn’t know why_____________________________________

She doubts________to see her again.

Ann: Are you tired?

Bethany: Why do you want to know________?

Ann: You look tired. I’m worried about you.

Her mother wonders________.

________she doesn't understand spoken English is obvious.

Using noun clauses, rewrite the following sentences without changing their original meanings

E.g. Something hit Jack hard in the neck. He didn’t know what it was.

→ Jack didn’t know what hit him hard in the neck.

He shared the problem in public. This was something that he should only talk with his family.

Matthias: Do we have to do our homework?

Jim: I don’t really know for sure________, but I suppose we do.

It is disappointing________Tom can't come. 

We need to talk more about_________for the summer vacation before July.

It is true________the law says there is no smoking in restaurants in this city.

I know________you must be tired after a long journey.

The question we have to answer is________keep in touch with other team members while we are not allowed to use mobile phones.

I wonder how much________.