[单选题]Guest: Oh, I hadn't realized how late it was. I'm afraid I'll have to be going. Host: Oh, not yet. I'm just going to make some coffee. Guest: ______ , though I'd really love to stay. I've got to be up by six tomorrow morning, unfortunately. Thank you for a wonderful party.

正确答案 ：A

I'm sorry, but I must

解析：解析：主人诚心挽留，客人坚持要走。由于不能接受主人的好意，客人应表示歉意，故而选择A．I'm sorry，but I must比较合理。其他选项使用场合不当。

[单选题]He was in a hurry and left things in a real ______.

正确答案 ：C

mess

解析：解析：in a mess意为“处于混乱之中”；mixture意为“混合，混合物”；mass意为“一块”；confusion意为“混乱，混淆”。

[单选题]He was not as active as I had ______him to be.

正确答案 ：D

expected

解析：解析：not as... as意为“和……不像”；recognize意为“认出”；inspect意为“检察，视察”；object是：反对(做某事)”；expect意为“期望，预期”。

[单选题]What should you do ff your child is under six years old?

正确答案 ：D

You should ask the doctor for advice.

解析：解析：本题的依据句为“For children under six years old consult your doctor.” consult your doctor=ask your doctor for advice，与D选项意思一致。其他选项内容属于错误信息。

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