13. He was playing basketball at four yesterday afternoon. (就劃線部分提問)
______ ______ he ______ at four yesterday afternoon?
14. He had nothing for breakfast. (改為反意疑問句)
He had nothing for breakfast ______ _______?
15. She doesn’t think I can surf on the Internet. (改反意疑問句)
She doesn’t think I can surf on the Internet, _______ _______?
16. He’s put the tree in the hole? (改為一般疑問句)
______ he ______ the tree in the hole?
17. How useful the book is! (改為陳述句)
It is ______ ______ useful book.
18. The population of Australia is about 19,500,000. (就劃線部分提問)
_______ ______ population of Australia?
19. The meeting will start in ten minutes. (就劃線部分提問)
_______ ______ will the meeting start?
