He sent me a few messages, but I (not reply) yet as I don't know what to say.
We must remember that the medical workers (fight)against the virus while we were resting at home.
Many parents are considering (choose)a good school for their children.
Simon, let's meet (在……外面)the theatre at 2 o'clock.
The (礼貌的)you are, the more others will like you.
Being healthy means keeping everything (好)balanced.