________hehasmanyfriends,heisoftenfeelinglonely.
A、AsC
狀語從句的從屬連詞的選取。
InEurope_______arethetwoleadingcontendersforaglobalreservationssystem.
Thefirsttaskofabrochureisto_______.
By the middle of the 21st century, the vast majority of the world ’s population will be living in cities _______ in the country.
Thevolleyballmatchwastelevised________onCCTV.
A well-known example of the large scale destruction of an ecosystem through vegetation removal to accommodate tourist facilities is the case of the _______.
