Nearly four hundred supermarkets in Beijing are preparing to dim their lights ________ the "Earth Hour 2010" on Saturday night.
| A．honor | B．honoring | C．to honor | D．having honored |
He is ______ to come back tonight. Then we’ll have a small party.
| A．most like | B．most likely | C．mostly like | D．very much like |
As we all know, Jack is experienced _____ the problem of this kind.
| A．to work out | B．at working | C．at working out | D．for working out |
I could have helped him out, to tell the truth, I _____ too busy.
| A．am | B．was | C．have been | D．had been |
Badminton is a _____ by an Englishman.
| A．game invented | B．play invented |
| C．match inventing | D．match invented |
– How much do you _____ mending a pair of shoes?
-- $ 15.
| A．ask | B．spend for | C．charge for | D．pay |