One of the best ways for people to keep fit is to____healthy eating habits.

A．grow

B．develop

C．increase

D．raise

Mr. Li           Kunming. He                the city three times. This time he        Kunming for three days.

A. has been to ,have gone to ,have been in

B. has gone to ,has been to , has been in

C. have been in, has been to ,have gone to

D have gone to, have been in , has been to