A. program B. blackboard C. support D. mud A. come in B. beaten track C. crowd in D. medicine A. window B. defy C. suspension D. pool A. heel B. Mr C. ointment D. human A. Piccadilly B. amusement C. thousands of D. don't A. please B. the Spring Festival C. concentration D. lose sight of A. go for B. shyly C. correction D. rubber A. report B. anthropologist C. parrot D. fail A. sorry B. tableland C. lesson D. drown A. detective story B. surfer C. negative D. listen to