______ the Internet is of great help, I don’t think it’s a good idea to spend too much time on it.
221. There are 5 ________ in the passage about nanometer(纳米) technology we have just read. Please tell me the general meaning of the first one.
220. Mr. Wang was reading ______ on how to learn a foreign language when someone came to see him.
219. I received a postal packet yesterday. Which of the following can replace the underlined word? _____
218. There came a voice of “ ”. She got her ring finger scratched by the bottle opener.
217. The constitution(宪法)reads: Any party, whether in office or in__________, should serve the majority of the people heart and soul。