ปัญหา 1
คำตอบสั้น
is Sam a typing letter.
Sam is typing a letter.
Sam is typing a letter.
Tom is driving a car.
Joe and Jane are eating sandwiches.
Jane and Joe are eating sandwiches.
they are
Mary is not working on the computer.
Mary isn’t working on the computer.
Is Jack sleeping now?
Is he sleeping now?
are having