生物遵循从单细胞到多细胞、____、____、____的发展规律,不断进化和发展.
读单词,选择画线部分发音不一致的选项。
① ____ A. think B. tooth C. with D. three
② ____ A. word B. short C. horse D. north
③ ____ A. bear B. pear C. wear D. year
④ ____ A. shout B. enough C. loud D. house
⑤____ A. win B. life C. bike D. time
Some students spend ________ time on the Internet. They forget to study, eat and sleep. They can't even communicate with people in real life.