Tìm lỗi sai trong các câu sau: 

Singapore has a highly developed market-based economy. Singapore, along with Hong Kong, South Korea and Taiwan, are one of the Four Asian Tigers.

I have not eaten fish for years.

For many years, I have eaten only fish.

I like eating fish for years.

It is fish that I have eaten for many years.

Peter did not go home until we finished our work.

As soon as we finished our work, we would go home with Peter.

We finished our work before Peter went home.

Peter had gone home before we finished our work.

My youngest sister's name is Lucy.

Whenever I see Lucy, I think of my youngest sister.

It is Lucy who is my youngest sister.

I always think of Lucy, my youngest sister

Give me a call immediately on arrival.

Wait until I call you to arrive.

I will phone you on my arrival.

Whenever you call me, I will arrive.

Give me a call immediately on arrival.

Wait until I call you to arrive.

I will phone you on my arrival.

Whenever you call me, I will arrive.

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