39. _______ the spread of COVID-19, one must ensure that their hands are free from germs. Washing hands with
soap and water is the most effective.
(A) Prevent
(B) To prevent
(C) Preventing
(D) By preventing
詳解 (共 3 筆)
未解鎖
肯定句在肯定語氣中,可以將 in ord...
未解鎖
B TO(表目的)+V 為了避免COV...