1) The student has not written the test yet.
2) Tim and Joe have not carried the boxes inside the house yet.
3) It hasn't started snowing.
4) The cat hasn't jumped onto the table yet.
5) I have not visited the castle yet.
6) We haven't gone out of the room all day.
7) Fred hasn't given the money back so far.
8) The haven't told Anne about it.
9) Steven hasn't walked through the park.
10) The teacher hasn't come to the party today.