Bộ 20 đề kiểm tra Tiếng Anh thi vào 10 có đáp án - Đề 11

There are on the market all kinds of vitamin pills one can take to make up for one's lack

25/40

There are on the market all kinds of vitamin pills one can take to make up for one's lack of certain important things (25) __________  are needed for normal health.

who

which

whom

whose

Giải thích

Chọn đáp án B