Things are ________ on Mars ________ on Earth because of the different gravity.
| A．much lighter; than that |
| B．much lighter; than those |
| C．not so light; as that |
| D．not so light; as those |
Sandy spent as much time as she could _______ English.
| A．practice speak | B．practicing speak |
| C．practicing speaking | D．practice speaking |
Kitty prefers _______ but Sandy would rather _______.
| A．to skate; skiing | B．skating; to ski |
| C．to skate; ski | D．skating; skiing |
----Helen, do you know if Martin _______ to my party next week?
----I think he will come if he _______ free.
| A．will come; will be | B．will come; is |
| C．comes; is | D．comes; will be |
Smile to the world, _______ the world will smile back to you.
| A．nor | B．but | C．or | D．and |
----English is a global language, so you shouldn’t _______.
----Thank you. _______.
| A．give it out; I can’t | B．give it up; I won’t |
| C．give it off; I can’t | D．give up it; I won’t |