Choose a suitable word or phrase (marked A, B, C or D) to fill in each blank.

Many chemicals react________in acid solutions.

Choose the word that has the stress different from that of the other words.

Choose the word that has the stress different from that of the other words.

Choose the word which has the underlined part pronounced differently from the rest.

Choose the word which has the underlined part pronounced differently from the rest.

Choose the word which has the underlined part pronounced differently from the rest.

Choose the best answer to complete the sentence.

_____are foods and other goods sold at a shop or a supermarket.

Choose the best answer to complete the sentence.

With the development of AI, there is lots of fun when students study with educational ___________ these days.