China is getting better at making hi﹣tech products ______ can be bought in all parts of the world.( )
A.whoB.whichC.what
______ they are twin brothers, ______ they don't look like each other.( )
Although; /
Although; but
But; although
Do you know whose book it is?
Oh. It ______ be Lucy's. Look, her name is on it.( )
can't
must
shouldn't
Her parents bought a new car for ______.( )
themselves
herself
themselfes
The computer is one of the most important ______.( )
inventor
inventions
invention
______ book on the desk is ______ useful one.( )
The; an
A; an
The; a