150 câu trắc nghiệm Tìm lỗi sai nâng cao (P6)
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In today's competitive markets, even small businesses had better

5/20

In today's competitive markets, even small businesses had better to advertise on TV and radio in order to gain a share of the market.

(A) Today’s

(B) To advertise

(C) On

(D) To gain

Giải thích

Đáp án B => advertise

cấu trúc had better + V = should + V: nên làm gì