Hearing the news, we did nothing but _____ silently.
| A．to sit | B．sat | C．to be sitting | D．sit |
They urged that the library_______ open during the vacation.
| A．must be kept | B．is kept |
| C．would be kept | D．be kept |
The church clock began to _______ twelve.
| A．hit | B．beat | C．strike | D．touch |
-----Is this the first time you______ Chengdu?
-----No. But the first time I______ here, the city wasn’t so beautiful
| A．visited; came | B．visited; have come |
| C．have visited ; have come | D．have visited; came |
Has the doctor _______ called for?
| A．referred to being | B．referred to been |
| C．referring to being | D．referred to be |
Mr Smith has a lot of business______. I know by______ that this man cannot be trusted.
| A．experience; experience | B．experiences; experience |
| C．experience; experiences | D．experiences; experiences |