Shirley won the first prize in the English speech contest. —Woo! ________ she has made since the beginning of this term!

Mom, my classmates invited me ____ a field trip. May I go with them?—OK.

The child was __ immediately after supper.

The teacher said ______ wanted to go to the cinema must be there before 6:00.

Scientists are working hard to make _______ possible for people to live on Mars in the future.