填空题When you speak English, your pronunciation should be correct, _______________(否则人家就听不懂你的意思).

填空题The background music in an assembly line is designed _______________(不被听到).

填空题Today the public is much concerned about the way _______________(大自然正被毁坏).

填空题_______________(无论你是为了吃而活着还是为了活着而吃), food is a major expenditure in every, family’s budget.

单项选择题A．Jeff has always liked his sister.B．Jeff made a phone call to-his sister.C．Jeff visited his sister.D．Jeff planned to visit his sister.