last year , my sister tried to lose weight (减肥), but ______ putting weight back on.

Students feel ______ when they have some difficulties in study.

Encourage your children to try new things, but try not to _____ them too hard. [ ]

How can I learn English well—You will learn it well ________ you practice speakingit often.

n could have defeated Howard in the match, but he _______ too careless at the last minute.