When you see foreign friends in our school，you can say to them“W_____ to my school
Welcome
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( )Look! Some meat ____ in the box. Some apples _____ in the basket.
()_____youseetheblackboard?
Ithinkthe______(four)lessonisthemostdifficultinthisbook.
you ，me，please ，could ，help
______________________________________
I have a pen friend，and we always send e_____to each other by computer
