______after meals is beneficial to people’s health.
A. Walk
B. Walked
C. Having walked
D. Walking
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Mr. Hanson said that he had a lot of trouble ______Tom’s poor handwriting.
A. read
B. to see
C. reading
D. in seeing
Maria often forgets ______off the lights in our living room.
A. to turn
B. turn
C. turning
D. turned
Catherine’s brother keep s______ her with her geography and physics.
A. to help
B. helping
C. help
D. helped
Alexander’s favorite hobby is ______musical instruments.
A. Played
B. play
C. playing
D. having played