._________ it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun.

The manager has to get all these washing machines______

It was dark he stayed at home.

One of the National Health Regulations is that public schools ______ actively create conditions for sports facilities opened to the public.

Cheng Long and Li Lianjie have much _______. And theyoften play similar roles in the movies.