Go and get your coat. It’s you left it.
| A．there | B．where | C．there where | D．where there |
You_______that mistake；you were too careless．
| A．should not make | B．should not have made |
| C．ought not have made | D．must not have made |
I really don’t think my best friend w ill be angry, but I’11 go and see her，in case she _______.
| A．will be | B．is | C．does | D．has been |
Paris is________most beautiful city，where you can see_______famous Eiffel Tower．
| A．a；the | B．a；不填 | C．the；a | D．the；the |
I really don't know _____ I put my wallet．
| A．where was it | B．it was where that |
| C．where was it that． | D．where it was that |
Stephen Hawking has expressed his opinion ___ humans might one day be able to make spaceships capable of such speeds that time on board would slow down．
| A．that | B．whom | C．which | D．what |