In our class there are 46 students, ______ half wear glasses.
| A．in whom | B．in them | C．of whom | D．of them |
The Burj Khalifa in Dubai is 828 meters high and there is no doubt it’s the tallest building in the world.
| A．that | B．what | C．whether | D．which |
Susan always thinks highly of her role in that film, makes others upset.
| A．where | B．who | C．that | D．which |
Once new difficulties _____ in our new job, we should learn to use our brain to deal with it.
| A．rise | B．arise | C．raise | D．come |
— There is a book on the grass. Whose book is it?
— It Mike. Look, his name is on the front cover.
| A．belonged to | B．is belonging to |
| C．is belonged to | D．belongs to |
Only when they were put in prison and lost freedom(自由) _________ its importance.
| A．they realized | B．did they realize |
| C．realized they | D．had they realized |