__ the fact that too much fat can beharmful, a moderate amount of fat is actually essential to the maintenance ofgood health

Excuse me, would you lower your voice or use your mobile phone outside? —Oh, sorry.I_______

Tom did all _____he could to geton well _____his classmates.

When he knew the disappointing result of the exam, he seemed quite ____.

Not only Jim but also his parents ______ a few placesof interest since they came to China.