When we climbed up to the top of the mountain, we were all __________ ,but we were very happy.
It is important for us to employ a word or phrase according to the ________ in language studies.
The boy will make a lot of trouble when ____________ alone.
It’s true that everyone loves a mystery, ___________ when mixes history with fiction. That’s why “ The Da Vinci Code ” is so popular.
___________ the Internet is bridging the distance between people; it may be breaking some homes or will cause other family problems.
The world Wide Web is sometimes jokingly called the World because it ________ be very slow.