Directions: In this section, you will bear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and .....
It is vital／ necessary／ important／ urgent／ imperative／ desirable／ advisable／ natural／ essential＋that＋（should）动词原形；
It is time／a .....
1.____in the past, at the moment it is a favorite choice for wedding gown.
A. Unpopular has as white been B. White has been as unpopular
C. Unpopular has been as white D. Unpopular as .....