I usually go to school on foot. And you?—[ ]

When to go there depends ______ the weather.[ ]

Jack, when shall we go to visit Mr. Smith? – It’s up to him. We’ll go to see him whenever _______.

I called Mary many times yesterday evening. But I couldn’t get through. Her brother _____ on the phone all the time.

Although the old man lives with his children ,he still feels____.