Ôn thi Cấp tốc 789+ vào 10 môn Tiếng Anh (Đề 13)

There have been a lot of talks about whether or not face masks are effective in helping

37/40

There have been a lot of talks about whether or not face masks are effective in helping slow down the (37) _______ of the COVID-19 coronavirus.

widening

release

lengthening

spread