当你在野外发生意外,急需援救时,你应该打出什么信号?A.SOS B. UFO C.WTO
——________ late for school again, Tom! ——Sorry, I promise I _________.
Anyone _______ information should contact the police ________ 55554012.
Some Math problems in this book aredifficult for the studentswork out.
_____earn more money for his new car, the young man has to work for three _____ hours in the evening.
His sister wanted to have him ____ the radio, but he had had it ____ already.