In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and click the button corresponding to it. If the sentence is free from error, click the "No error" option.
The reason for (A)/ my absence is (B)/ due to ill health (C)/ No Error (D)
The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.
The operating system manages all the CPU, disc drives, establish a user interface, execute and provide services for applications software, printers, etc...