When I walked past the park. I saw some old people _________Chinese Taiji.
A. do B. did C. doing D. are doing
_________ I met some difficulties, Larry always came to help me.
A. Whether B. However C. Whatever D. Whenever
My friend and I are interested in drawing, but of us is
good at it.
A. neither B. both C. none D. all
The computer is one of ________ inventions in modern society.
A. useful B. more useful C. the most useful D. most useful
—The old songs always ________ me of my childhood.
—I have the same feelings.
A. explain B. remember C. remind D. hurry
My sister was writing an e-mail ________ I was watching TV at home at this time last night.
A. since B. after C. while D. if
