Direction (Q. 1 - 10) : Read each sentence to find out whether there is any grammatical error or idiomatic error in it. The error, if any, will be in one part of the sentence. The letter of that part is the answer. If there is no error the answer is 4.. (Ignore errors of punctuation if any.)
Q. 1) They did not follow the /2) directions properly so /3) they had difficult /4) in reaching my house.