Here is too noisy for us ________.
A. to talk
B. talk
C. talking
D. talked
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While ________, he was doing his homework.
A. listening to music
B. to listen to music
C. listen to music
D. having listened to music
Lucy, there is someone ________ for you at the door.
A. wait
B. waited
C. waiting
D. to wait
Here is a horse _______ to the tree.
A. tying
B. to tie
C. tie
D. tied
_______ the early train, you have to get up early.
A. Catching
B. To catch
Catch
D. Caught