A
I don't know the answer, so I must ...
guess
If you don't understand it, you can ask the teacher to... it.
explain
You can't talk loud in the theatre. You must ....
whisper
to write and send a message on your found =
text
to give something to somebody and get money for it =
sell
to ask somebody to go out with you =
invite
to go and bring something =
fetch
learn something =
find out
start =
begin