---Is the Youth Center open to the public yet?
---Yes. It ______ for almost one and a half years.
| A．has opened | B．has being opened |
| C．has been open | D．was open |
---Could you_____ me this book please, Daniel？
--- Sorry, but I_____ it for only half an hour. I haven’t finished it.
| A．lend; have had | B．borrow; have bought |
| C．borrow; have had | D．lend; bought |
In fact he knows this place very well, for he ________ there three times.
| A．has been | B．has been to |
| C．has gone | D．has gone to |
He _____ in this factory for 20 years already.
| A．will work | B．works |
| C．has worked | D．is working |
— What were you doing when we were playing basketball yesterday afternoon?
— I ______ the classroom.
| A．was cleaning | B．have cleaned |
| C．will clean | D．clean |
—What do you often do at weekends?
—I often _________ my grandparents.
| A．visit | B．visited |
| C．have visited | D．will visit |
--Wow! You have a ticket to the Expo!
--lt - by my uncle. He is working in Shanghai.
| A．has bought | B．had bought |
| C．is bought | D．was bought |