Li Hua told me what difficulty she had had _____ English before she came to Canada.[ ]

is it from Beijing to your hometown–More than 30,000 miles.

Mr Green has_____one-year-old son,doesn’t he-Yes,and he also has______eight-year-old daughter.

Drunk driving, which was once a(n) ________ happening, is now under control.

After three days’ waiting, there was a little doubt in the mother’s mind _______ the police could find her lost child.