1．At 3∶30 p．m.the chairman________the meeting closed.
A．decided B．declared C．announced D．informed
解析：句意：“ 在下午三点三十分，大会主席宣布大会闭幕。”考查词义辨析：decide on/about...不用decide sth.adj.；announce不能用，announce sth.to sb.；inform. sb. of sth.；inform sb. to do。
答案：B
2．________I have to walk all the way，I’ll get there.
A．Even though B．As if C．Even so D．As soon as
解析：本句句意为““即使我不得不一路步行，我也将会到达那儿的。”as if“好像”；even so“即使如此”；even though“即使”；as soon as“一……就……”。
答案：A
