问题
选择题
“Where is Mother.” “She is in the kitchen. She _______ the housework all morning.”
A．is doing
B．was doing
C．has done
D．has been doing
答案
D。
现在完成进行时表示从过去至今一直在持续的动作。
搜题请搜索小程序“爱下问搜题”
“Where is Mother.” “She is in the kitchen. She _______ the housework all morning.”
A．is doing
B．was doing
C．has done
D．has been doing
D。
现在完成进行时表示从过去至今一直在持续的动作。