Do you know what ______ the little boy?
| A．happened has to | B．happened with |
| C．has happened to | D．have happened |
—What’s wrong with you? — It’s ________.
A. nothing serious
B. serious nothing
C. serious something
We will stay at home instead of ________.
A. walking B. to walk C. walk
Remember, _____ careful you are, _____ mistakes you’ll make.
| A．the more; the fewer | B．the more; the less |
| C．the more; the more | D．the less; the fewer |
Mary and her best friend _____ tall and thin.
| A．are both | B．both are |
| C．is both | D．both is |
With Tom’s help, Jack does his homework _____ than before.
| A．much more careful | B．more careful |
| C．much more carefully | D．much carefully |