Don’t lose heart. It won’t be long ___________ you catch up with others.

Millie, where is Miss Li?—She a speech on Chinese art to the first-year students in the hall.

Does Shelly like shopping?—–Well, she would rather spend time __________ at home than __________in the street.

What a nice MP5! Whose is it? — It’s . My father bought me last week.

．I really don’t know _______I kept the secret papers．