Father ________ for London on business upon my arrival, so I didn’t see him.
A. has left B. left C. had left D. was leaving
The boy’s dream was to have his own laboratory ________ to try out some of his own ideas.
A. from which B. in which
C. by which D. at which
There is a common belief among them ________ rubbish can should be put to good use.
A. which B. what C. whether D. that
The happy ________ of children playing in the garden disappears, and it is quiet again.
A. spot B. view C. scenery D. scene
The farmer considered me as his old friend and treated me ________ some good tea.
A. as B. for C. to D. on
I prefer a flat in Harbin to ________ in Beijing, because I want to live near my mom’s.
A. one B. that C. it D. this
