I WROTE TO HIM LAST WEEK BUT SO FAR I RECEIVED NO REPLY TO MY LET...

168. - 2000 CAU TRAC NGHIEM ANH A B C
2000 CAU TRAC NGHIEM ANH A B C

168. I wrote to him last week but so far I received no reply to my letter.

a. wrote

b. so far

c. received

d. to

--> c