Each of the following sentences has four underlined words or phrases. Read each sentence and determine which underlined portion, if any, has an error in grammar, usage, word choice, or idiom (standard expression). If there is no error, select choice (E). Choice the letter of your answer. 1. The state school system in England can be divided into two levels of educated: primary and secondary. No error. be divided into educated secondary No error 2. Not one in one hundred children exposed to the disease are likely to develop symptoms of it. No error. Not one are symptoms it No error 3. Ours brains are incredibly agile machines, and it's hard to think of anything they do more efficient than recognize face. No error. are anything efficient recognize No error 4. The clerks who are happy to wait for their customer will get promoted soon. No error. clerks wait for customer get No error