Write negative sentences . Use the Present Prefect .
1 . (meet) They ..........him.
2 (buy) She .............a new lamp
3 (watch) He ........... it
4 (read ). We ........the book
5 (build) they ...,...,.the house
6 (help). It ..........me
7 (see). You ......,......him
8 (ask). She .............about it
9 ( be). We ...........,to Moscow
10 ( wash). He ...............his cup