题目

动词填空【1】---How many times _____ you ________（phone） me these days?----Three times.【2】Great changes ________(take) place in those villages in the last ten years.【3】I _______(learn) a lot about English since I came to this school..【4】My brother _______(join) the army a year ago. He ______ (be) a soldier for a year.【5】---_______ you _______(read) this story book before? ----Never.【6】He ________ never _________(eat) such delicious noodles before.【7】When _______ the train _________( arrive)? Ten minutes ago.【8】We _________(not see) each other since we ____在密闭容器进行反应N2+3H22NH3，温度一定时，若将平衡体系中各物质的浓度都增加到原来的两倍，则产生的结果是（    ）①平衡不发生移动  ②平衡向正反应方向移动  ③平衡向逆反应方向移动  ④NH3的百分含量增加  ⑤正、逆反应速率都增大A.①⑤               B.①②⑤               C.③⑤                D.②④⑤