2. 外语
  3. Be sure ______ your hands before you have meals.

Be sure ______ your hands before you have meals.

admin2009-08-17  19
问题 Be sure ______ your hands before you have meals.
选项 A、to wash
B、wash
C、washing
答案A
解析 Be sure to do sth．确切做某事，记得做某事。
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