求教高一英语寒假作业问题,我需要解释！！

1.__________（study) map,you may find the Sahara Desert about the size of the U.S.

2.You didn't attend the meeting and it's a great pity.
__________ you didn't attend the meeting __________ a great pity.

3.As I didn't receive any letter from Mary，I gave her a call.
__________ __________ any letter from Mary ,I gave her a call.

4.( )No matter how hard I pushed the door ,it __________ open.
A.didn't B.won't C.wouldn't D.couldn't

5.A cake made of rice tastes better than __________ made of flour.
A.one B.that C.the one D.those

我需要你们的解释，谢谢！热爱英语的朋友帮忙解答一下！

寒假作业上一些高一英语问题 高一寒假化学作业问题 高一寒假作业 高二英语寒假作业 高一英语寒假作业~在线等（高分） 高一物理寒假作业 高一寒假政治作业 一道高一寒假作业 高一数学寒假作业--集合类 高一寒假地理作业!帮帮忙!