He is a ______ boy.
| A．ten-years-old | B．ten-year-old | C．ten years old | D．ten year old |
If we don’t use money ______, we’ll have a difficult time.
| A．happily | B．easily | C．loudly | D．wisely |
—Cindy, you learn physics so well. What’s your ______?
—Doing a lot of exercises.
| A．secret | B．knowledge |
| C．expression | D．ability |
They eat many but little _.
A. vegetables; meat
B. vegetables; meats
C. vegetable; meats
Did you decide ________ a new car?
A. to buy B. buy C. buys
Helping others can make us very happy.
A. feel B. feeling C. to feel