Rewrite the sentences, keep the meaning unchanged. (1.5pts)
1. People speak English as the second language in Singapore.
English______________________________________________________
2. We can do this exercise in 5 minutes.
This exercise__________________________________________________
3. We don’t waste paper. We save many trees.
If we_________________________________________________________
<!--[if !supportLists]-->4. <!--[endif]-->“ We are having a wonderful time in Da Lat.”
Hoa told Tom that___________________________________________.
<!--[if !supportLists]-->5. <!--[endif]-->It rained heavily all day yesterday, so we didn’t go camping.
We didn’t___________________________________________________.
<!--[if !supportLists]-->6. <!--[endif]-->It is possible to live on the Moon.
It isn’t______________________________________________________.