--Which month has______ days in a year? ----February.
The notebooks aren't here. Please _the teacher _ them.
Our art festival is _ October 20" . Welcome to our festival.
-Is this your pencil? -Yes, it's _. Look, here is No. 5.
-Let's play tennis, OK?-Sorry, I must _ first.
- _ he like math? 一 Because it's difficult.