Put the sentences below into the passive voice. 

Our teachers give us a free period this Saturday to prepare the festival.

=> We

to prepare the festival.

Choose the best answer.

Hue Imperial City was certified as a World Cultural ____ in 1998.

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

Choose A, B, C, or D that best completes each sentence.

The students of the Imperial Academy_____ from local examinations all over the country.

Choose the best answer.

Huong Pagoda is ______ as not only a religious site, but also a great sight-seeing spot in the country.

Choose the best answer.

The students of the Imperial Academy_____ from local examinations all over the country.

Supply the correct passive form of the verbs in brackets.