His novels sell best and have made him famous, but before that no one could have imagined how great a role he ______ in the literary world．
| A．had played | B．has played | C．is playing | D．was to play |
----I’m sorry, but there is no smoking on this flight.
----Oh, I _____ that. Sorry, I won’t again.
| A．don’t know | B．didn’t know | C．won’t know | D．haven’t known |
___ ,she is experienced.
| A．As she is young | B．Young as is she |
| C．Young as she is | D．Though she was young |
___, he was a man known to the people all over the town.
| A．Tailor as he is | B．A tailor as he is |
| C．Tailor as is he | D．A tailor as is he |
Use your head,___ you’ll find a good way.
| A．and | B．or | C．for | D．but |
___ happens, we’ll carry on the experiment.
| A．Wherever | B．Whatever | C．Whenever | D．Whoever |