—Where is your mother，Tom?—She _________________the dishes in the kitchen.

Look! The man ________  under the tree .

—Will you go and see the movie Net Mother with me?—Thank you. But I _____it already.

The students _______ their homework carefully when the teacher walked into the classroom quietly.

This girl is ready to help people any time. When she is on the bus, she always     her seat to someone in need.