－Where’s Lisa, Eric?
－She __________ to the library.
| A．goes | B．had gone | C．has gone | D．would go |
There __________ great changes in our hometown over the twenty years.
| A．have taken place | B．have had | C．have been | D．were |
The water in this river is harmful because It’s a ______ river.
| A．pollution | B．polluted |
| C．has polluted | D．pollutes |
I won’t go to see the film this evening because I _____ my ticket just now.
| A．have lost | B．will lost | C．lost | D．lose |
--- Where is your mother?
--- She _______ to Sichuan on business. She has ______ there four times recently.
| A．has gone, gone | B．has been, been |
| C．has gone, been | D．has been, gone |
Rose feels lonely from time to time because all her friends____________.
| A．married | B．have married to | C．have got married | D．marry |