—Jack, you look tired today. What’s wrong?—I was_____ busy ___ I didn’t go to bed until midnight yesterday.
_________ my mother was washing clothes, my father was reading books.
When the first ______ came to the US, they were hungry as they have nothing to eat.
Spring is the best _______ of the year, because we can see lots of beautiful flowers.
I ________ the room yesterday, so it is not dirty today.
When the sun shines, the clouds _________ , and we can see everything much better.