Experts believe________people can waste less food by shopping only when it is necessary. (2013·北京,33)
His way of speaking suggested that he ____ very angry.
Pine trees, of which there are almost one hundred _____, are found throughout the North Temperate Zone.
The salmon dish was _______, wasn’t it?
The conference had been held to discuss the effects of tourism ___ the wildlife in the rainforest.
Specialists may be useful to _____ a situation and suggest solutions.