The deserted island is only _______ by boat.

Never visit strange websites, ________ the thieves may crack(破译)the password of your Internet account.

1－David, can you_______ yourself－Ofcourse, I can.

to the Internet, we have_________ to data quickly and effectively, regardless of where we are and what we are doing.

Look at the photo I took in Jinghong,Yunnan Province. _________the Dai people were having!— Wow! They were celebrating the Water Festival.