A sentence/a part of the sentence is underlined. Five alternatives are given to the underlined part which will improve the meaning of the sentence. Choose the correct alternative. In case no improvement is needed, click the option corresponding to "No improvement".
I wonder if or not Mum and Dad have got back from the Bahamas yet?
1
Whether or not
2
If not
3
If or no
4
Whether and not
5
No Improvement