It’s difficult _____ your sound because the noise is too high.
#61203
A
to listen 
B
to know 
C
to learn
D
to hear
推荐题目
Would you like ______ about the spaceship?
#60702
A
to tell me some information
B
tell me some information
C
to telling me any information
D
tell me any information
I can’t sing ________ dance. Would you please teach me _________first ?
#61733
A
and, to dance
B
or, dancing
C
or, to dance
D
and, dancing