—I find difficult to learn English grammar.
—You can do more English exercises.
| A．that | B．this | C．those | D．It |
We should take care ________ ourselves.
A. to B. for C. of
—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 |