ほとんどが基本的な『比較』表現の問題です。
現在使っている英文法参考書の『比較』を見直し、ご自分で確認してください。
[1]
1) (as tall as)
2) (don't get up as early)
3) (as many CDs)
[2]
1) My father is (not) (as) busy as Ms. Suzuki.
私の父は鈴木さん程忙しくない。= 鈴木さんの方が私の父より忙しい。
2) Ted spent (not) (so) much money traveling abroad (as) Nancy.
海外旅行をするのに、テッドはナンシー程たくさんのお金を使わなかった。
※not so much A as B BほどAでない
3) My brother is younger than my brother (by) (five) (years).
※比較級+by … …の差で
[3]
1) This lake is (more) (beautiful) than the one near my house.
2) Today I have (as) (much) homework as yesterday.
3) Bob plays the piano (better) (than) Ken.
4) This problem is (not) (as) (important) as that of the environment.
5) This problem is (much) (more) (difficult) than that one.
※[much]+比較級… than ~ ~よりも[ずっと]…
[4]
1) (This watch is five times as expensive as) mine.
2) (This room is less convenient than that one) for meetings.
3) (This hole is three meters deeper than) the one over there.
参考にしてください。
訂正:[2] 2) Ted spent (not) (so) much money traveling abroad (as) Nancy.
⇒ Ted spent (one-fifth) (as) much money traveling abroad (as) Nancy.
テッドは海外旅行をするのに、ナンシーの1/5のお金を使った。