和我一起背單詞[劉毅3000](第五課第四節(jié))2

5.4 從剛才背過的單詞中選出最適當?shù)奶钊肟崭駜?nèi).(注意時態(tài)喲)
    1. Man's landing on the moon is the most ( ) event in all human history.
    2. The champion has ( ) his championship title longer than anyone else.
    3. Plans for selling the new products are now in ( ).
    4. The ( ) on your hand will soon be well.
    5. Please rub the ( ) off the old helmet.
    答案:
    remarkable;
    retained;
    preparation;
    scratch;
    rust;