I try to understand __________ that prevents so many Chinese from being as happy as one might expect.
| A．why is it | B．what is it | C．why it is | D． what it is |
Bring it nearer _____ I may see it better.
| A．although | B．even though | C．so that | D．since |
You may arrive in Beijing early _____ you mind taking the night train.
| A．that | B．though | C．unless | D．if |
Helen listened carefully _____ she might discover exactly what she needed.
| A．in that | B．in order that | C．in case | D．even though |
More people will eat out in restaurants _____ they do today.
| A．than | B．when | C．while | D．as |
_____ hard she tries, she can hardly avoid making mistakes in her homework.
| A．Much | B．However | C．As | D．Although |