It is very important for us healthy.
making mistakes, we should read each question carefully.
If you want , try to ask him not to.
In some ways, I am quite my sister.
—I'm sorry, but my father and I planned _________ Beijing a long time ago.
—Wait a minute. It's dangerous for us ______ it while crossing the street.
recycle; throw away; ton; turn off; look after
departure time do an experiment do exercise excited about
go out of have to take photos travel back
pass watch finish help drink