---_____________.
----Fine ,thanks.
A. Hello.
B. Nice to meet you.
C. How are you ?
You will know how cool it is to achieve your dream ______ your own hard work.
| A．till | B．across | C．through | D．about |
The boy wanted to keep a pet rabbit and his mother decided to buy ______ for him.
| A．it | B．one | C．that | D．this |
Hello, everyone！ It's my great ______ to be here to make a speech. Thanks for your attention.
| A．lesson | B．change | C．honor | D．memory |
—Allen, please tell me what you are going to be when you grow up.
—To be______ engineer just like you.
| A．a | B．an | C．the | D．不填 |
—Did you know ______ just now?
—Their plane didn't take off on time because of the thick fog.
| A．what did they happen | B．what happened to them |
| C．what they happened | D．what they have happened |