His way of speaking suggested that he ____ very angry.
A. should be B. be C. is D. was
Pine trees, of which there are almost one hundred _____, are found throughout the North Temperate Zone.
A. species B. samples C. specimens D. Standards
The salmon dish was _______, wasn’t it?
A. success B. the success C. a success D. successes
The conference had been held to discuss the effects of tourism ___ the wildlife in the rainforest.
A. in B. on C. at D. with
Specialists may be useful to _____ a situation and suggest solutions.
A. analytical B. analyze C. analysis D. analyst
Problems _____ because they were lack of communication.
A. raised B. rose C. arose D. aroused
