Frequent smoggy weather has set the alarm ringing; by no means can we develop economy _____ the environment.
A. under the name of B. for the sake of
C. at the cost of D. in the light of
The English play _____ my students acted at the New Year’s party was a great success.
A. for which B. in which
C. at which D. on which
If you _____ regret things you did or didn’t do in the past, then you won’t be able to move forward.
A. actually B. briefly C. casually D. Constantly
— Why are you still here! Everybody has gone to attend the lecture by the president!
— Oh, I ____ about it!
A. wasn’t informed B. didn’t inform
C. haven’t informed D. hadn’t been informed
You probably have noticed that people express similar ideas in different ways, _______ the situation they are in.
A. bringing about B. depending on
C. getting into D. leading to
All over the city, history and modernity come together to make _______ an essential place for tourists to discover.
A. each B. this C. one D. it
