1.About three weeks a _____ his grandfather died.

1.About three weeks a _____ his grandfather died.
2.Let's go to Li Lei's house to play comuter games.(改为同义句）
____ we _____ to Li Lei's house to play computer games?
____ ______ going to Li Lei's house to play computer games?
3.The student has a cold.(改为同义句）
The student ____ a _____.=The student _____ a _____.
4.I have a stomachache.(改为同义句）
I have an ____ ______ my stomach.
I have a _____ ______ my stomach.
My stomach _____.
My stomach _____.