Complete the sentence 1) if it (rain) tomorrow,we'll 2) if (go) to school by bus, it,s than 3) if you go to school by it,s than 4) if you (be ready), let,s go !

1) If it rains tomorrow,we'll take umbrellas 2) If you go to school by bus, it,s faster than walking. 3) If you go to school by car, it,s much faster than going by bus 4) If you are  ready, let,s go