问题补充:
— Hello, Betty! Where are you now?
— I on the Great Wall of China and talking to you.
A. stand
B. am standing
Cstood
D. was standing
答案:
A. stand
(答案→)B. am standing
C. stood
D. was standing
解析:
试题分析: 句意:你好。贝蒂,你现在哪儿?我正站在中国的长城上和你讲话。 and和,连接相同成分,根据now和talking to you. 可知是现在进行时,故选B