1. my book bacame a best seller .it was published last year ( mệnh đề quan hệ) 2. the man was very helpful .He spoke to me ( mệnh đề quan hệ ) 3. he lose his job because he is late every day (conditional sentence ) 4. we don't know his number, so we don't call him ( câu if)

1. My book, which was published last year, became a best seller.

2. The man who spoke to me was very helpful.

3. If he weren't late every day, he wouldn't lose his job.

4. If we knew his number, we would call him.

- $Answered_{}$ $by_{}$ $thieukhue_{}$ -

1.My book which was published last year became a best seller.

2.The man who spoke to me was very helpful.

3.He is late every day,so he lose his job.

4.If we knew his number,we could call him.