The twins almost look the same. We can hardly tell one from ______.

Is Sandy your classmate—Yes. She sits between Tom and ________.

Have you read the timetable —Yes . The train ____ at 10:15 p.m.

The students _____ the bus and walk across the bridge __ ___ the river.

It’s believed ______40% of stars, like the sun, may have planets that orbit them.