Look at Helen in the room.She is still working so late. 一 It _____be Helen there. She has flown to London with her parents this morning. [ ]

If you go to Xi’an，you will find the places theremore magnificent than commonly ________.

Tom has no sense of life so he often makes stupid mistakes, making others laugh．

10. The actor ______ us greatly with hiswonderful performance and excellent English.

Briggs will asgeneral manager when Mitchel retires.