300 Câu trắc nghiệm tiếng Anh tìm lỗi sai có đáp án - Phần 8
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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.

4/30

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.

today’s

to advertise

on

to gain

Giải thích

Chọn đáp án Bto advertise => advertise
Giải thích: cấu trúc had better + V: nên làm gì