around the university, we then were taken to abuilding, ______ many scientists worked.

We are living in an age _______ many things can be done on computers and the Internet.

(2013·郑州高中毕业班第一次质量预测)—Did you enjoy meeting your old schoolmates at the party last week?—Yes, I didWe ________ each other since we graduated from college

I hope you_______ to my birthday party this evening.

Eric, isn’t this book yours—Yes, it used to belong to _________, but from now on it isn’t.