---What’s the low-carbon(碳) life style like?
----Save energy, produce carbon.
| A．more; more | B．less; more | C．less; less | D．more; less |
Listen! Some birds are singing __ the tree!
| A．in | B．on | C．at | D．of |
We can see__ old bike __the tree.
| A．a; under | B．the; at | C．a; on | D．an; under |
--Is your hat on the sofa?
| A．Yes, I am | B．No, it is | C．Yes, she is | D．Yes, it is |
--Where __ my pictures?--They're on the desk.
| A．is | B．are | C．be | D．am |
This is Jim and this is Tom. __ my __
| A．She's; friend | B．They're; friends |
| C．They're; friend | D．She's; friends |