He is a singer and an actor _____.
If we don’t use money ______, we’ll have a difficult time.
—Cindy, you learn physics so well. What’s your ______?—Doing a lot of exercises.
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