The building around the corner caught fire last night. The police are now ______ the matter.
A. getting through B. working out C. looking into D. watching over
A survey was carried out on the sleep time of students in middle schools, ______ were surprising.
A. its results B. whose result C. the results of which D. of which results
---Do you have ______ for the party, Mary?
---No, we still have to get another five chairs and some fresh flowers.
A. something B. everything C. anything D. nothing
Was it in 1969______ the American astronaut succeeded ______ landing on the moon?
A. when; on B. that; on C. when; in D. that; in
---What do you remember Alexander Graham Bell as?
--- ______ inventor of ______ telephone.
A. an; / B. the; a C. the; the D. /; the
---I hear that Mary won the prize of the biology contest.
---______ She was not interested in it at all.
A. You’re kidding! B. So what? C. Why not? D. Not really