用所给动词的适当形式填空。
---It’s raining heavily. You’d better      ( not leave) the umbrella at home again.
      (prepare)the fruit salad just before you’re going to eat it.
We should act actively to prevent natural disasters      ( live) a more comfortable life.
I like summer best because I can sit in the shade of the tree with my friends,        (eat) ice cream to feel cool.t)
---Why didn’t you say anything?  ---Sorry, I       (reply) to my sister’s message.