Điền từ thích hợp vào chỗ trống: ... are you buy this evening

dien tu thich hop vao cho trong
1..are you buy this evening
 yes.I .....(met) tuan at the library at seven .we.....(study) together.
2. I......(read)an interesting book at the monent.I.......(lend) it to you when I finish it.
3. I.....(not invite) her to the party because I....(forget) her phne number