找出错误并改正。

例:The old woman talk about her life many years ago.  ×  talk--talked

1. Many thanks for talk to us._____

2. I didn't have enough time do my homework._____

3. He live in a small house when he was a boy._____

4. There wasn't any trees in our school in the past._____

5. My friends have got lot of books._____

淋巴细胞交叉配合试验的目的主要是检测

A．受者血清中有无抗供者淋巴细胞的抗体

B．供者血清中有无抗受者淋巴细胞的抗体

C．受者淋巴细胞HLA-DR抗原

D．供者淋巴细胞HLA-DR抗原

E．供者淋巴细胞HLA-DP抗原