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
The Internet is a very useful invention for us, ______ we can do lots of things at home.
A．with which B．with it C．for which D．for it
