Beijing isn’t what it used to be. The last decade _______ great changes in the city images.
| A．witnessed | B．was witnessed |
| C．has witnessed | D．had witnessed |
Eugene’s never willing to alter any of his opinions, so it’s no use ________ with him.
| A．to argue | B．arguing |
| C．argued | D．having argued |
Charlie ______ be really difficult at times even though he’s a nice person in general.
| A．shall | B．should | C．can | D．must |
It was only after I came across that matter_______ how important it was to master a foreign language.
| A．did I realize | B．had I realized |
| C．that I realized | D．when I realized |
--- When shall we meet again, Tom?
--- Make ______ day you like; it’s all the same to me.
| A．that one | B．it any | C．it another | D．that some |
Every athlete as well as some coaches who ____ to go to the Games ____ asked to be here before 7:30 am.
| A．are; are | B．is; is | C．are; is | D．is; are |