1.The ground is riddled with ice wedges,many quite ancient,caused (by the cold earth cracks) and the cracks filled with water.A.by the cold earth cracking B.when the cold earth cracks.括号内为啥选B不选A?and不是应该并列两个名词嘛?2.

The ground is covered with An ice cream is on the ground. My classroom is on the ground floor. The ground is covered with d_____leaves(die) There is a book____on the ground There is a book____on the ground. There is () of water on the ground Look!he is l____on the ground The ground is al2ready white.翻译 怎样翻译The ground is al2ready white? 翻译 In the ground state,the principal quantum number(n) is 1. The ground is higher;the air is thinner同义句转换------- ------- the ground is,------- -------the air is 求翻译What's above the ground is more important than what's beneath the ground. It is( )hard.The ground is so white now 用this,the,floor,ground,is,UK,in,the(.,造句) The snow on the ground is one foot th--- the sun is shining ___（bright）on the ground The wallet is (on the ground)?对划线部分提问