So difficult ________ it to live in an English-speaking country that I determined to learn English.

A. I have felt      B. have I felt      C. I did feel         D. did I feel

So difficult ________ it to live in an English-speaking country that I determined to learn English.

A. I have felt      B. have I felt ???? C. I did feel         D. did I feel

So difficult ________ it to live in an English-speaking country that I determined to learn English well.

   A. did I feel                   B. I did feel                          C. have I felt                       D. I have felt

So difficult         it to live in an English-speaking country that I determined to learn English well.

         A．I have felt                B．have I felt                C．I did feel                   D．did I feel

So difficult _____ it to live in an English-speaking country that I determined to learn English well.

1. A.
   I have felt
2. B.
   have I felt
3. C.
   I didn't feel
4. D.
   did I feel