Answer: D
Explanation: There is no mistake if you read it the teacher did all of these things
Well, some people collect rocks, so you could write:
I have collected rocks from San Francisco, Washington, D.C., and Boston.
It's tirade because a tirade is an angry, long, bitter speech or outburst.
Polio dose is provided to small children from villages to that of cities .This is a successful health measure undertaken by government to improve public health. Government also promotes other health measures in free of cost in governmental hospitals .
