We need to learn __________ be polite when we make requests.a. what to b. why to c. how to d. whether to
I’ve________five pounds.I think I need to lose weight.
—The meat is________delicious. —Yes,but don’t eat________.
The doctor asked me________more fruit and vegetables to keep healthy.
My brother________eating spicy food now because he has had it for five years.
The red bike________be Li Hong’s.She has a blue bike.