---David said he could fix my computer, but I really doubt it.

---________. He is very good at such sort of thing.

A. Don’t worry              B. Of course 

C. A piece of cake           D. Never mind

---David said he could fix my computer, but I really doubt it.
---______. He is very good at such sort of thing.

1. A.
   Don’t worry
2. B.
   Of course
3. C.
   A piece of cake
4. D.
   Never mind

---David said he could fix my computer, but I really doubt it.

---________. He is very good at such sort of thing.

A. Don’t worry          B. Of course 

C. A piece of cake        D. Never mind

--- David said he could fix my computer, but I really doubt it.

---______. He is very good at such sort of thing.

A. Don’t worry                    B. Of course          C. A piece of cake             D. Never mind

---David said he could fix my computer, but I really doubt it.
---________. He is very good at such sort of thing.