Susan wanted to be independent of her parents. She tried _____ alone, but she didn’t like it and moved back home.
| A．living | B．to live | C．to be living | D．having lived |
The famous musician, as well as his students, _____ to perform at the opening ceremony of the 2012 Taipei Flower Expo.
| A．were invited | B．was invited |
| C．have been invited | D．has been invited |
The girl has a great interest in sport and _____ badminton classes twice a week over the last three years.
| A．took | B．is taking |
| C．takes | D．has been taking |
_____ basic first-aid techniques will help you respond quickly to emergencies.
| A．Known | B．Having known |
| C．Knowing | D．Being known |
I’m calling about the apartment you ______ the other day. Could you tell me more about it?
| A．advertised | B．had advertised |
| C．are advertising | D．will advertise |
It was playing computer games _____ cost the boy plenty of time _______ he ought to have spent doing his lessons.
| A．what; that | B．that; when |
| C．which; that | D．that; that |