Eating too much fat can ________ heart disease and cause high blood pressure.
We had intended to do everything according to the schedule, but it didn’t ______ as planned.
Some people are sitting on the grass; others are walking along the lake, ______ .
Over years, scientists have made a great _____in the treatment of cancer.
Many children think they are ______ with when their parents are trying to show concern about them.
Some people argue using _____ nature to meet our own needs may spell disaster, unless we start to look around and understand how ______ clean environment benefits us all.