Here is ______ e-mail from my friend.
—— How does Jack usually go to school?—— He ________ ride a bike, but now he is used to ______ there.
You should _______ the bus when it stops.
We really don’t know ________ . Could you help us?
—— I think running is an easy way to keep healthy.—— __________ , but Bill doesn’t think so.
Don’t forget _________ your bed after you get up.