Complete each sentence by changing the question in parentheses to a noun clause.

1. (will it rain?) I wonder .........................................

2. (Where did she go?) .................................................. is none of your business.

3. (How far is it from New York to Jakarta?) I wonder ...............................................

4. (Which one does he want?) Let’s ask him ............................................

5. (Who is coming to the party?) I don’t know ........................................

6. (Has Susan ever been in Portugal?) I wonder .....................................................

7. (How many letters are there in the English alphabet?) ............................... I don’t remember .

8. (Why did they leave the country?) ......................................... is a secret.

9. (Can birds communicate with each other?) Do you know .................................................

10. (How much does it cost?) I can’t remember ............................................