She didn’t know__________she could express her ideas clearly when she was invited to speak at the meeting.
| A．what | B．why | C．how | D．whether |
There are _____ new words in the _____ lesson.
| A．fourty, ninth | B．forty, ninth |
| C．forty, nineth | D．fourty, nineth |
We are often told _____ at people in trouble.
| A．don’t laugh | B．to not laugh |
| C．not to laugh | D．to laugh |
The old woman kept one black dog and two white ____.
| A．one | B．ones | C．those | D．one’s |
–Is this orange radio _____?
-- No, it belongs to ______.
| A．yours, me. | B．yours, his |
| C．her, him | D．yours, her |
______ book on the desk is _____ useful one.
| A．The, an | B．A, a |
| C．The, a | D．The, / |