1. It is difficult to __________ one twin from the other.
They almost don't __________ from each other.
| A．differ; distinguish |
| B．distinguish; different |
| C．distinguish; differ |
| D．tell; different |
. When talking about his road to success in an interview, he owed his success ______ his mother.
| A．for | B．in | C．on | D．to |
The style of Western art has changed many times ______ Chinese art has changed less often.
| A．while | B．before | C．since | D．however |
—Summer vacation is approaching. Have you decided how to spend it?
—Well, I consider ______ an English training centre to improve my spoken English.
| A．to attend | B．attending | C．to be attending | D．attend |
We have two spare rooms downstairs, ______ has been used for more than two months.
| A．neither of them | B．none of which | C．none of them | D．neither of which |
—John, why are you going to fly to South Africa next week?
—______ the FIFA World Cup 2010.
| A．Seeing | B．See | C．To see | D．To be seeing |