指出下列句子中的错误并改正
（____） 1. Yesterday I (A) play (B )football (C) and( D) basketball.______
（____） 2. (A) Did Amy and Sam (B) helped (C) their (D) mother? ______
（____） 3. I (A) didn’t (B) watched (C) TV (D) yesterday. ______
（____）4. I (A) played (B) table tennis and she (C) plays (D) basketball yesterday. ______
（____） 5. (A) Do (B) you (C) help (D) your little sister yesterday? ______
（____）6. — (A) Did Xiaoyong and Xiaoming (B) laugh?--Yes, (C) he (D) did. ______
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