Q:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".
The boys absented themselves for two days. 

• 1
  absented
• 2
  had absented
• 3
  were absented
• 4
  No improvement