I often write words _____ a pen.[ ]

Boys, don’t touch the machine, or you may hurt _________.

He is so fat because he usually eats sweat snakes ______ meals. [ ]

Whose French book is it?– It __________ be Lucy’s. Look! Her name is on the book!

Our school is going to hold the ________ Culture Festival. —Yes! And we can take part in ________ activities.