【選択肢がすべて動詞になっている問題（その 1 ）】
1. Let us know as soon as possible if you can ------- it to the party by returning
the enclosed card.
2. The woman turned the corner and hastily ran across the street without -------
out for traffic.
3. Most of the construction crew is working overtime because the project is
still ------- behind schedule.
4. Mr. Johnson will be ------- for London on the 10:00 a.m. Oceanic Airline
flight on Friday morning.
5. While swimming with children, adults have to ------- out for trouble, even
in quite shallow water.