枣庄市峄城区积极开展预防青少年吸烟和创建“无烟校园”活动,2015年6月2日,该区在城郊中学隆重举办“拒吸第一支烟,做不吸烟的新一代”签名活动。他们纷纷承诺 “拒吸第一支烟”。这说明责任来自于( )
-- Shall I go and buy more fruit for the party? -- No, I have already bought 3 baskets. That ____ be enough.
____ is often the case, the teacher has made the teaching plan before the new term.
– Would you please lend me some money? -- ____. I was not born with a silver spoon in my mouth.
The book was written ______ careful observations and detailed studies.
A short man appeared suddenly in the doorway, and Dave had to pull up __________ so as to avoid bumping into him.