11. He (wishes) he (would) paint (canvasses) instead of house (for a living). 

for a living=> for a life

12. (If) you (took) more exercise, you (might) feel (healthily).

healthily=> healthy

14. The company (offered) the position (to) John (who) department performed (best) this year.

who=> whose

15. We (have tested) three (hundred) types of boot, none of (those) is completely (waterproof).

those=>which

17. (Though) an approaching storm, the two (climbers) continued (their) trek (up) the mountain.

Though=> Despite 

18. I (hope) the weather (will be) (nice) (in the weekend).

will be=> would be

Chúc bạn học tốt:))

11. would `=>` could

12. healthily `=>` healthier

14. who `=>` whose

15. those `=>` them

17. Though `=>` through

18. will be `=>` would be

#Mon