You really don’t need to buy another computer ________ you have already got one.
University is ______ most worthwhile time of discovery and learning, and it is also ______very enjoyable and valuable experience for every one of us.
— How do you find your trip to the Great Wall? — We had an awful time! ______, George got sick the day we arrived.
It was in the wooden house______ a businessman built by collecting funds______ the great scientist carried out the experiment that made a difference.
----To build a factory is beneficial to the locals, but on the other hand, it will be not environmentally friendly. ---- That’s_____ environmental protection organizations disagree.
I tried to apologize, but I think I ____ it the wrong way.