Some experts hold the view that fundamental construction is _____ the key to the little island development lies.
A. which B. what C. where D. why
A Chinese student’s print-like handwriting caused controversy among British Internet users, _____ both praise and questions about individuality.
A. having drawn B. drawing C. to draw D. drew
Tech-free tourism refers to traveling without a mobile phone or similar devices, particularly to places_____ block or cannot access Internet and cellular signals.
A. which B. where C. when D. who
----A study suggests reducing energy demand in the future may _______ urban areas.
---That’s true. Cities need more energy than small towns or other rural areas.
A. center on B. act on C. hang on D. catch on
I needn’t have been in such a hurry. The flight to Hong Kong _____ due to the typhoon.
A. has cancelled B. was cancelled
C. will be canceling D. had cancelled
Our mothers sat us down to read and paint, ____ all we really wanted to do was to make a mess.
A. since B. as C. unless D. when
