He __________computer games when his parents left home. So he didn’t know where they were.

cross-lake swimming race, a boatwill be ____in case of an emergency

Melissa is fascinated by the variety of our earth’s landscape and her admiration and curiosity are _____ in her new book.

Not only the kids but also the teacher ________. Weare worried because time is running out.

What a clean and bright classroom, isn’t it—Yes, it’s always clean and bright because it everyday.