On my birthday, my father bought me a new bike.A. five B. fifteen C. fifteenth
Although we’ve learned English for years, we have trouble _____ the foreigners.
-----How many students are there in the classroom?------_______.
Students are supposed ________ hard at school.
--- I’m going to spend my winter vacation with my parents in Hainan ! --- __________ !
This film is as ________ as that one.