1. market / tourism
The missing letter is t, forming market and tourism.
2. ground / diamond
The missing letter is d, forming ground and diamond.
3. urban / netizen
The missing letter is n, forming urban and netizen.
4. advice / expert
The missing letter is e, forming advice and expert.
5. suburb / button
The missing letter is b, forming suburb and button.
6. match / hurry
The missing letter is h, forming match and hurry.
7. drama / answer
The missing letter is a, forming drama and answer.
8. local / leader
The missing letter is l, forming local and leader.
9. factor / risky
The missing letter is r, forming factor and risky.
10. menu / uniform
The missing letter is u, forming menu and uniform.
11. perform / method
The missing letter is m, forming perform and method.
12. stamp / plastic
The missing letter is p, forming stamp and plastic.
13. nephew / watch
The missing letter is w, forming nephew and watch.
14. galaxy / youth
The missing letter is y, forming galaxy and youth.
15. status / subject
The missing letter is s, forming status and subject.
16. belief / foreign
The missing letter is f, forming belief and foreign.
17. swing / guide
The missing letter is g, forming swing and guide.
18. concert / target
The missing letter is t, forming concert and target.
19. network / knife
The missing letter is k, forming network and knife.
20. quiz / zero
The missing letter is z, forming quiz and zero.