How ______ universe came into being is a puzzle to ______ scientists of all generations. A. the; 不填 B. an; the C. a; 不填 C. 不填;the
As it turned out to be a problem of no importance , we so much time looking into it .
The specialist at the meeting will give us a lecture next week .
common with many boys ,he likes playing computer games .
French , I have to study a second foreign language .
The couple’s quarrelling and fighting last Sunday ___each other . I think so . Nancy was in the arm and she blamed that her arm the whole week .