题目内容
Read the passge and fill in the blanks with the proper words.
Dinosaurs lived on earth more than sixty m ________ years ago. This was a long time b ________ people existed. There were millions of dinosaurs. Some were as small as chickens. Others were as big a ________ ten elephants. Some dinosaurs had wings and c ________ fly. Many dinosaurs were h ________. They were as gentle as sheep and ate plants. O ________ were harmful. They were fiercer than tigers and ate meat, unlike most other dinosaurs.
答案:million;before;as;could;harmless;Others
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