—I saw Jane and her boyfriend in the park at eight yesterday evening.

—Impossible. She __________ TV with me in my home then.

A．watched

B．had watched

C．would watch

D．was watching

若以下选项中的变量已正确定义，则正确的赋值语句是（ ）。

A．x1=26.8%3

B．1+2=x2

C．x3=0x12

D．x4=1+2=3;