最近,科学家发明了一种制作防火涂料的新工艺。发生火灾时,这种涂料会转变成一种黑色物质,覆盖在楼板表面,起到防火作用。其防火的原因是
You see a red light, You must ______. A. go B. wait C. stop
You can go by ___bus. A. the NO.10 B. NO. 10 C. NO. the 10
——Mr. Black: Happy Women’s Day! ——Miss White: _______. A. Thank you B. Happy women’s Day C. Welcome
It’s _______ _______the cinema. A. near B. in to C. next to
Is it far _______here? A. for B. of C. from