选择题：Restaurants must stop offering free plastic bags in Beijing _______ customers as

题目内容：

Restaurants must stop offering free plastic bags in Beijing _______ customers ask for them.

A.since

B.unless

C.because

参考答案：

答案解析：

—Tim, our foreign teacher Ms. Green will go back to England next week.—Really? L

—Tim, our foreign teacher Ms. Green will go back to England next week.—Really? Lets have a party to

分类：中考题型：选择题

The Chinese doctors went to Italy to help the patients________they knew it was dangerous.

分类：中考题型：选择题

My twin brothers promised my parents to give up playing computer games, but ____ of them made it.

分类：中考题型：选择题

分类：中考题型：选择题

Although he ________, he never ________.

分类：中考题型：选择题