Tomhasbeenavegetarian____principleforyears.
B
【句意】 多年来，汤姆一直是一个按原则行事的素食者。
【难点】 on principle意为“根据行为准则;按照原则”;in principle 意为“原则上;基本上;大体上”。for和by不与principle搭配。
I don’t know ______ a show. Can you tell me?
Mrs. White has _____ that she is not able to get a job.
- We haven’t heard from Jane for a long time.
-What do you suppose_____ to her?