The man was so funny that Amy couldn’t help_____.A. laughs B. laughing C. to laugh
There ________ a book on the floor .A. am B. is C. are
——Could you tell me ?——Glad to help.
——________ late for school again, Tom!——Sorry, I promise I _________.
Anyone _______ information should contact the police ________ 55554012.
Some Math problems in this book are difficult for the students work out.