第1个回答 2016-05-22
1. CABC A B CDCDA CDB D B CBA
2. （1）What has happened: We have just moved
（2);This has not been easy
(.3); I have… put
(4); I have ever seen
(5) What has beenhappening: I have been working
(6);I have been trying
(7) have explained…haveunderstood…Have you been listening…has been working/ has worked…has beenearning/ has earned…has she earned…have not been listening
3. 1 carefully 2 hard 3 hard 4 late 5 nearly 6fast 7 high
4。 1 b 2c 3c 4a5b 6d 7 c 8 b 9a 10 c11b 12 d