I often hear the little girl the piano in the next room．
A. practicing playing B. practice to play C. practice playing D. to practice playing
We stopped _________, but there was not any sound.
A. to listen B. listens C. listen D. listening
Nobody could solve this difficult problem alone ________ others' help.
A. with B. for C. without D. from
I am sorry that I have kept you ________ me so long.
A. waiting B. to wait C. waiting for D. to wait for
The movie made ________ feel energetic.
A. he B. them C. his D. they
He ________ an English club last year and has improved his English a lot.
A. protected B. produced
C. joined D. Received
