The book, ________ to tell people how to learn English as ________ second language, is very helpful for beginners.

―Could you tell me____________ ―At 2:00. Hurry! There are only ten minutes left.

The workers ___ busily when the boss came to look for something she ___ in the office

Great changes __________ in my hometown in the last five years.

The students in our class did a thorough cleaning inthe classroom.Now everything is .[ ]