---Would you like to go for a picnic with us?
---________, but I’m too busy.
| A．No, I can’t | B．Yes, I would |
| C．I’d love to | D．Why not |
He only said it for _____, he didn’t really mean it .
| A．joy | B．fun | C．joke | D．thank |
It will take _____ years to make robots _____ the most unpleasant things .
| A．hundred ; to do | B．hundreds of ; to do |
| C．two hundreds; do | D．hundreds of ; do |
My life _____ a lot_____ than it is now .
| A．will be; good | B．is ; better | C．will be; good | D．will be ; better |
I predict he will be an engineer _____ten years because he is so interested in making things.
| A．in | B．after | C．later | D．for |
If there are _____trees, the air in our city will be _____ cleaner.
| A．less; more | B．more; more | C．more; much | D．much; more |