阿摩線上測驗
21. Actions you can take to protect yourself and others include washing your hands often and ______ your cough.
(A) covering
(B) cover
(C) to cover
(D) have covered
答案：登入後查看
統計： A(1524), B(89), C(43), D(28), E(0) #2385236
統計： A(1524), B(89), C(43), D(28), E(0) #2385236
詳解 (共 2 筆)
河馬向前進!
#4815229
有and存在，代表他前後的詞性要一樣，所以washing your hand and covering your cough.
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