I beg your pardon, but I didn’t quite catch you— Oh, I ______ myself

Shall I ________ the raincoat–No hurry. Leave it ________ it is. It looks likerain.

Who’s your favorite classmate—Linda. Although she came first in the exam, she didn’t __________ at all.

I don’t know this English word.- Well, here is a ____and it can help you.

填入下面一段文字横线处的语句，最恰当的一句是（ ）随着雾霾频发，油品质量对环境的影响引起了人们越来越多的关注，有测试表明，一些城市空气中PM2．5的20%左右来自机动车尾气，而只要使用符合新标准的汽油和柴油， 。有鉴于此，我国将加快促进成品油质量升级国家专项行动。