What happened to Mike? —He had a stomachache. He began to work _______ having breakfast this morning.[ ]

Do you think necessary to do a bird count ?Yes , we must count them at least once a year

Some of the girls don’t like their new teacher ____ with them too little after class.

Jack ____ the bus and read newspapers in the seat quietly.

If he______ harder next time, he will catch up with us.[ ]