Though a good student, Tom's recent ______ has been inconsistent. (perform)

She is interested in learning English.

Choose the word / phrase / sentence (A, B, C or D) that best fits the space or best answers the question given in each sentence. (3.5 pts).

Which word has the underlined part pronounced differently from that of the others?

Rewrite each of the following sentences in another way so that it means almost the same as the sentence printed before it. 

Mary sings better than her elder sister does.

Mary is _______________________________.

They find it easy to understand native speakers.

They have no _______________________________.

My father used to smoke cigarettes.

My father doesn't _______________________________.