I have a lot of doubts in the paragraph, and I must make it clear by next month, as I have exam at the end of next month.
I have a lot of doubts in the paragraph, and I must be clarified with the help of teacher by next month, as I have exam at the end of next month.
I have a lot of doubts in the paragraph, and I must dissipate that before my exam.
Please correct my sentences.