【简答题】Put the following expressions from the text in the blanks to complete the sentences. Make changes where necessary. call for base ... on be linked to in contrast preferential defer to a...
【简答题】如果是两个人一起行走,行走的规则是以( )为尊,以前为尊。
【简答题】The air was filled with a ____________ smell of chemicals.
【单选题】The air __________ t he scent of flowers. A. was filled with B. was filled of C. was full with D. fill with
【单选题】下面哪一种情况不会导致HIV病毒的性行为传播?( )