Choose the correct answer. What ________ the children ________? – They are swimming.
13/20
Choose the correct answer.
What ________ the children ________? – They are swimming.
is – doing
are – doing
do – do
Giải thích
Đáp án đúng: B
Cấu trúc: What + is/are/am + chủ ngữ + V-ing?
Ta có “the children” là số nhiều => dùng “are”
=> What are the children doing? – They are swimming.
Dịch nghĩa: Những đứa trẻ đang làm gì? – Chúng đang bơi.