Who will _______ the baby when your aunt isaway—Nobody but me.

The difference in achievement between the pupils arepartly ________by their differences in age.

How do you usually get to school—I usually ride a bike or walk to school, but I’ll take a bus if it’s _______.

It’s reported that a bus went out of ____ control on ahighway _____ east of the city and crashed into a river

It’s important for him_____ English well.