----Do you hear that Mary quarreled with Lily this morning?
----Are you sure?But they acted_____nothing had happened.
| A．as if | B．as long as | C．even if | D．so that |
Victor apologized for ________ to inform me of the change in the plan.
| A．his being not able | B．him not to be able | C．his not being able | D．him to be not able |
In march,2008, Medvedev was elected _______ president of Russia—________ position he will hold for 6 years.
| A．a; a | B．不填；a | C．the; a | D．the; the |
When _______ to F1, I have little knowledge to if.
| A．I come | B．they come | C．we come | D．it comes |
I feel like _________ a long walk. Would you like _______ with me?
| A．taking; going | B．taking; to go | C．to take; to go | D．to take; going |
You will succeed in the end ________ you give up halfway.
| A．even if | B．as though | C．as long as | D．unless |