________from the top of the tower，the Birds Nest looks more magnificent.
| A．To see | B．Seeing | C．Seen | D．See |
What _____ you _____ tomorrow morning?
| A．are/going to do | B．are/doing | C．are/done | D．have/done |
It was not long before the water _____ cold.
| A．is feeling | B．feels | C．felt | D．was feeling |
I _____ as soon as you come back.
| A．went | B．have gone | C．am going | D．shall go |
The scientist _____ Canada and he will give us a talk when he _____ back.
| A．has gone to/comes | B．has been to/will come |
| C．has gone to/will come | D．has been to/comes |
He found his book this morning, but now he _____ his pen.
| A．loses | B．is missing | C．has lost | D．lost |