问题
_____ many times, but he still doesn’t know how to operate the machine properly.
A:Although I have shown him
B:I have shown him
C:Having been shown
D:Having shown
B:I have shown him
C:Having been shown
D:Having shown
正确答案是：
同类题型
Nobody taught _____ Chinese. He learned all by ______. What a clever boy!
What are you doing now? –I’m _____,Mum.
______classmates are nice . I love to play with _______.
Deng Yaping was born _____ June 2nd, 1973.[ ]
Look! The two boys always come in and go out in pairs. —That’s really as a saying goes, “_______.”