请选择ABCD2N.C(R,s0\.U — I’m going to Hang Zhou for a holiday this weekend．(M:g,Z,_)y0\/e
— __________ you are there，can you buy me some green tea?(M:g,Z,_)y0\/e
A．Because(M:g,Z,_)y0\/e
B．If(M:g,Z,_)y0\/e
C．While(M:g,Z,_)y0\/e
D．After(M:g,Z,_)y0\/e