具有产生抗体、分泌细胞因子参与免疫调节的细胞是( )

A．T细胞
B．B细胞
C．NK细胞
D．K细胞
E．LAK细胞

---Tom, I’m afraid that I can’t catch up with you.

---_____.You are sure to make it.

A．Hurry

B．You’re right

C．Come on

D．You’re welcome