I had been working on math for the whole
题型:选择题
问题:
I had been working on math for the whole afternoon and the numbers ________ before my eyes.
A.swim
B.swam
C.swimming
D.had swum
I had been working on math for the whole afternoon and the numbers ________ before my eyes.
A.swim
B.swam
C.swimming
D.had swum