1. I haven’t seen that man here before. àIt is __________________________________________________ 2. My sister hasn’t been to the safari before. àThat is __________________________________________________ 3. We have read the letter before. àThis is ____
1 câu trả lời
1. It is the first time I have seen that man here.
2. That is the first time my sister has been to the safari.
3. This is not the first time we have read the letter.
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