There are some police cars in front. What do you suppose _____?
| A．is the matter | B．is happened |
| C．is the wrong | D．the trouble is |
______, but the idea of having to work more than ten hours a day without weekends discouraged me.
| A．Wanting to be a teacher | B．Although I wanted to be a teacher |
| C．I had wanted to be a teacher | D．To want to be a teacher |
— How do you find the town you visited yesterday?
— The town has changed out of all ______ in the past 20 years, a completely new one in front of me.
| A．realization | B．description | C．expression | D．recognition |
Green economy offers a new model ______ people could both protect the climate and develop the economy, according to what Li said at the International Cooperative Conference on Green Economy and Climate Change.
| A．how | B．why | C．where | D．which |
Buses have routes. They ________ and ________ people at different places on the routes.
| A．take on, get off | B．pick up, drop off |
| C．take up; take off | D．pick out; drop out |
He doesn’t spend any more money on clothing than I do, but ______ he manages to look so stylish.
| A．therefore | B．somehow | C．furthermore | D．otherwise |