① Sure, it souds just like today!
② Didn't you know that it had already been decided?
③ Hot and humid in the afternoon.
④ Scattered thunderstorms are likely.
⑤ The weather has been quite bad.
Aの What's the forecast for tonght?：「今夜の天気予報はどう。」という質問に答えているので、③ のHot and
humid in the afternoon.は「午後は蒸し暑い。」よって ④ Scattered thunderstorms are likely.：「ところどころ雷雨がありそうだよ。」
2. Open your books to page 37. Let's take a look at one theory that I personally
 very interesting.①find②find it ③ regard to ④ observe ⑤ consider it
that I personally  very interesting thatは関係代名詞（目的格）なので、の動詞のあとに目的語はつかない。
interesting は補語なので、find + O +intersting：「Oが面白いことを発見する。見出す。」
Let's take a look at one theory that I personally find very interesting.：「私が個人的に面白いと思う理論を見ましょう。」
3. Having things to chew  very young puppies with one of their major
sources of stimulation, especially when they are still too young to be
able to stay still even for a short period of time.①provide ② provides
③ are providing ④is provided by ⑤ were to be provided by
provide A with B：「AにBを提供する」
主語は having（動名詞）なので、三人称単数現在形の動詞 provies
Having things to chew provides very young puppies with one of their major
sources of stimulation,：「噛むものがあれば、とても幼い子犬は主要な刺激のもとを与えられる。」
4. The rising cost of health care is due not only  the aging of the
population and the demand by growing numbers of elderly for health care
but also because of many other reasons.①as ②but ③for ④of ⑤to
5. Well, if next week, I can meet you on the 10th or on the 12th. Would
 of these days be convenient for you?
① some ② which ③ either ④ none ⑤ two
if next week, I can meet you on the 10th or on the 12th.：「10日か12日か どちらが都合がよいか尋ねる内容なので、
③either of these days
②whichの場合は Which of these days would be convenient for you? となり、語順が不可。
6. A： heart disese remains our country's number one killer, since the
mid-1960s there has been a rapid decline in deaths from the disease for
both men and women, especially men.
B：Really? Could you tell us what contributed to the decline?①As far ②Because ③ Regardless of ④Although ⑤ During
heart disese remains our country's number one killer：「心臓疾患は我が国の最大の死亡原因のままです。」と「S ＋ V]」が続くので、には接続詞が入る。
since the mid-1960s there has been a rapid decline in deaths from the disease for both men and women, especially men. ：「1960年代半ば以来、男と女両方、特に男性は、心臓疾患による死亡が急速に減少している。」とあるので、逆接の接続詞が入る。
7. Historians have shown that there were at least two industrial revolutions.
The first one started in the late eighteenth century,  by new technologires
such as the steam engine, and more broadly, by the replacement of hand-tools
①characterizes ②characterized ③ characterizing ④ has characterized ⑤ were
The first one started in the late eighteenth century, characterized by
new technologires such as the steam engine, ・・・：「第1次産業革命は18正規後半に始まり蒸気機関などの新しい技術に特徴づけられる。」
8. The second industrial revolution, about 100 years later, feutured the
development of electrisity, sciene based chemicals, and the beginning of
communicationtechnologies, with the spread of the telegraph and the 
of the telephone.
① interference ② connections ③ happening ④ explosion ⑤ invention