I know a little bit about the city as I __________ there for one year in my youth.
| A．am studying | B．had studied | C．studied | D．have studied |
The program is like a window on the world ____ you sit by it and fix your attention on what it shows.
| A．if | B．as | C．while | D．unless |
—Ms Lin looks rather a kind lady.
—But in fact she is cold and hard on us. You ____ believe it!
| A．shouldn’t | B．wouldn’t | C．mustn’t | D．needn’t |
Will you see to ____ that my birds are looked after well while I’m away?
| A．them | B．yourself | C．it | D．me |
The number 9.11 is a special number, ____, I think, that will be remembered by the Americans forever.
| A．what | B．it | C．which | D．one |
The car ____ at the present speed until it reaches the foot of the mountain at about nine o’clock tonight.
| A．went | B．is going | C．goes | D．will be going |