Could you give me a handItseems that my strength has________.

The country has already sent up threeunmanned spacecraft, the most recent ________ at the end of last March.

Many people believe we will suffer from more environmental disasters _____we change the way we live[ ]

know, I met my girlfriend’s parents for the first time only yesterday. — ________ I thought you’d met them before.

Tom, please tell me.—In the Olympic Sports Center.