A new __________ bus service to Tianjin Airport started to operate two months ago.
| A．normal | B．usual |
| C．regular | D．common |
—Why does the River smell terrible?
—Because large quantities of water .
| A．have polluted | B．have been polluted |
| C．has been polluted | D．is being polluted |
The magnificent land of Australia has ______ worldwide attention with its exotic, charming landscape, dynamic economy, vibrant people and diversified culture.
| A．attracted | B．spread |
| C．updated | D．described |
“The money _________all go to his son, according to the will made by Mr Green,” declared the judge.
| A．should | B．must |
| C．shall | D．may |
_______we work hand-in-hand and redouble our efforts, our relations will surely embrace an even brighter future.
| A．So long as | B．However |
| C．Which | D．Now that |
Teachers should allow their students to study ________ from the start, and it is bound to result in their ability to deal with problems on their own.
| A．theoretically | B．socially |
| C．optionally | D．autonomously |