Viết lại câu sao cho nghĩa ko đổi :
a, the firm star wore dark glasses so that no one would recognize him
- the firm star avoid. ..... . ...
b, I hope to see you at Christmas
- I am........
C, people did not discover Aids until 1981
- not until. .. .....
D, it is difficult for us to makes ends meet there days
- we find . .........
E, i am pleased that we shall meet again soon
- it is.... . ... ....