Sit down, Emma. You will only make yourself more tired，__________ on your feet.
| A．to keep |
| B．keeping |
| C．having kept |
| D．to have kept |
Peter _____ come with us tonight, but he isn't very sure yet.
| A．can | B．may | C．must | D．will |
Jenny _____ have kept her words. I wonder why she changed her mind.
| A．could | B．might | C．would | D．should |
_____ some of the juice—perhaps you'll like it.
| A．Trying | B．Try | C．To try | D．Have tried |
The way of _____ enough money was to sell her hair.
| A．to get | B．get | C．getting | D．got |
_____ production up to 60％,the company has had another excellent year.
| A．As | B．For | C．With | D．Because of |