预科部寒假自主学习英语作业（八）

—Isthisbook?—Yesandit'sEnglishbook. A.a;a B.an;a

Herwatchinherbag. A.am B.is C.are D.be

PleasecallTom536-4428. A.in B.to C.of D.at

Isthis? A.boxyourpencil B.yourboxpencil C.yourp

Howdoyouspellruler? A.the B.a C./ D.an