I don't remember___________ to the airport that year.
| A．to be taken | B．being taken | C．having | D．to take |
45. —Could I borrow your digital camera, please?
—Yes, of course you ________.
| A．might | B．will | C．can | D．should |
44. —Look!The boy is doing some washing.
—He is only eight years old, but he is very ________.
| A．lonely | B．separate |
| C．responsible | D．independent |
43. Learning a foreign language well takes a long time, ________?
| A．doesn't this | B．does this |
| C．doesn't it | D．does it |
42. Many countries are increasing their use of natural gas, wind and other forms of ________.
| A．energy | B．source | C．force | D．material |
41. —Well, it's getting late. I must be going. Thank you again for inviting me to the party.
—________
| A．Oh, it's already so late? |
| B．Thank you for coming. |
| C．Oh, sorry you could't come. |
| D．I really had a happy time. |