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a. You can either talk to the manager about your problem or writing a letter to the president of the company.
- here the correct form would be "or write a letter" - so the whole sentence is incorrect
b. Anyone who is going to work here will have to be athletic, an intelligent person, and have a good sense of humor.
- yes, this one is correct! it doesn't have any mistakes AND it's a parallel construction.
c. Most people enjoy ice cream and the plant grows. - this is not incorrect, but it's a bit weird. plus, it's not a parallel construction
d. The painter wore glasses, gloves, and boots. - this is correct, but it's not a parallel construction. </span>
this is a little hard but it seems to me that you have a wrong answer in number 2 you put ap over extremely but it should be over bird other than that you are good there is probably 1 or 2 mistakes so just go back over it i do not see anymore mistakes.
This is false: it has a very negative connotation.
It refers to a smile that is mocking or contemptuous (or a remark that is mocking or contemptuos) - so it's not a genuine smile, but an ironic and sarcastic smile. It has a negative and not a neutral connotation.