英語の問題を教えてください！

質問

次の英文の( )の中に入る英文を選ぶ問題です。

Unlike (A) for a vacation, getting ready for business trevel requires careful planning and coordination. When you arrive at your destination, you want to look your best. But it is also ideal (B) as "light" as possible. For a business trip that lasts from 3-5 days, some experts recommend the 3-2-1-1-1 policy: three pair of underwear and socks, two sport shirt, one suit, one pair of jeans, and one button-down dress shirt. Experts also recommend (C) bulky items like winter coats and sweaters on the airplane. (D)

(A) 1.pack 2.packing 3.to be packing 4.to pack
(B) 1.being traveled 2.to be traveled 3.to travel 4.traveling
(C) 1.to wear 2.wearing 3.wore 4.worn
(D) 1.Therefore, it is expensive to travel by air.
2.Otherwise, the baggage you bring on the plane is too small.
3.That is why you should keep an eye on your belongings.
4.Because they are tricky to pack and can keep you warn during longer flights.

よろしくお願いします。

回答No.1

Nakay702

旅行するときの参考になる文章でした。

答えは順に以下のとおりです。
(A) 2.packing
(B) 3.to travel
(C) 2.wearing
(D) 4.Because they are tricky to pack and can keep you warn during longer flights.