Find the one mistake (A, B, C or D) in these sentences and then correct them

Question:(A) Her brother is (B) interested in (C) to join the (D) English Club.

You couldn’t (A) prevent that lovely dog from (B) following you (C) wherever you (D) to go.

What do you call a young person who is about to leave or has just left secondary school? – A (school) _______.

Fill the gap in each sentence with the correct form of the provided word

Question: You can't work (continue) _______ for six hours without a break!

Mr. Nguyen (A) was just getting (B) into the bath (C) what the cell phone (D) rang.

A (A) preferred (B) profession (C)among children is (D) the building sandcastles

We know that (A) there is (B) no point in (C) help the pupils (D) at the present.