题目

连词成句。请将所给单词连成完整正确的句子。【1】October; on; is; 21st; birthday; Alice’s_____________________________________________________________?【2】needs; shoes; for; he; a; white; of; school; pair______________________________________________________________.【3】have; history; you; Wednesday; do; on_______________________________________________________________?【4】books; are; everywhere; Bob_____________________________________________________________.【5】about; food; let’s; think; the; healthy_______________________________________________________据质量守恒定律，6g碳和32g氧气充分反应后，生成二氧化碳的质量为（　　）A．38gB．22gC．26gD．14g