(D)21.Put the piano there,with its back ________ the wall.
A.from B.for C.on D.against
(B)22.That's ________—I'm sure I put my glasses in my bag and yet they're not there.
A.fair B.strange C.simple D.useful
(D)23.The newspaper ________ that more than 300 people were killed in the fire.
A.guessed B.discussed C.realized D.reported
(B)24.He was ________ ill ________ we had to send for a doctor.
A.too;to B.so;that C.enough;to D.such;that