2．
(1). A is the scientific study of the stars, planets,and other objects in space.
(2). If you ___________ (乘;乘以) 7 by 15, you get 105.
(3). He was a medium height,but had very b________ shoulders.
(4). Asia and Africa are the two biggest ___________(大洲).
(5). He was t_________ at the thought of being punished by his father.
(6). The moon is a (卫星)of the earth.
(7). There are at least three g___________——grandparents, parents and children.
(8). It was __________ (体贴的) of you not to play the piano while I was asleep.
(9). Which doctor d the newly-born baby?
(10). She settled down on the sofa, (闲聊;聊天)with her daughter.