The word“them” in the third paragraph refers to____ 

Choose the word whose underlined part is pronounced differently from that of the others.

Choose the word which has the different pronunciation.

Choose the word which has a different stress pattern from that of the others.

Choose the word which has the different stress.

Choose the best answer to fill in the blank.

The Vietnamese authorities decided _______ files on “Don ca tai tu Nam bo” to UNESCO.

Choose the best answer

My husband and I take turns cleaning ________ the kitchen depending ________ who gets home from work earlier.

Choose the best answer

I have been trying to ring him up all day and I could not ______ through.