〜することによって　

• from

• of

• by

私が〜するのを妨げる　→ prevent me (. ) 〜

• for

• from

• by

〜してくれてありがとう　→ Thank you (. ) 〜

• of

• for

• by

飽き飽きする　→ be tired (. )

• of

• for

• by

〜せずに　

• from

• by

• without

Have you finished (. ) your room?

• cleaning

• to clean

Do you enjoy ____ other countries?

• visiting

• to visit

Mary suggested ____ dinner at a restaurant.

• having
• to have

Karen failed _____ a good impression at the job interview.

• to make
• making

Sarah gave up ______ to find a job in this country and decided to go abroad.

• trying

• to try