Tony ______ his homework this morning before he went to school.
#102974
A
has done
B
did
C
has done
D
will do
推荐题目
A single pipeline ___________ all the houses with water.
#102223
A
is served
B
serves
C
are serving
D
serve
The book came out in 1973 and it _________into thirty languages ever since.
#99538
A
translated
B
has been translated
C
has translated
D
was translated
He ________ in American for five years, and now he works in Shanghai.
#102010
A
have worked
B
worked
C
had worked
D
have been working