The computer system suddenly while he was searching for information on the Internet.

tting sun was reflected on the river, ________ everything along the banks ________ all the more beautiful.

Ifthereis______pollution,theairinourcitywillbe ________dirtier.

Chris, please ________ a meeting with Mr. Du for me this evening who came back from Canada yesterday.

had no friends and relatives in thetown, the traveler tried to find a _____ somewhere