The ____ trees we plant, the ____ our world will be
| A．less; beautiful | B．more; more beautiful | C．little; beautiful | D．least; best |
－Why not go to see the dolphin show with me?
－Because I _______ it.
| A．saw | B．will see | C．see | D．have seen |
－Have you written anything on Chinese traditional food so far?
－__________, but I have a plan for it.
| A．Ever since | B．Later on | C．Not yet | D．From now on |
－Excuse me, does Mr Smith’s son live here?
－He _________ be here, but he has moved.
| A．has to | B．used to | C．tried to | D．happened to |
－ Is your father in?
－ No, he ______ for three hours.
| A．was out | B．has been out | C．went out | D．has gone out |
— I can help you with your English.
—___________.
| A．I’m sorry to hear that. |
| B．Thank you. |
| C．Yes, you can. |
| D．That’s all right. |