31. B ( can go → could go )
→ S + wish(es) ( that ) + S + would/could/should/might + V0: future wish
32. C ( see → to see )
33. B ( will → won't )
→ If + S + V(phủ định), S + will not + V0 = Unless + S + V(khẳng định), S + will not + V0
34. D ( is → was )
→ vì có 'ago' nên ta dùng QKĐ - ở đây số ít nên ta dùng 'was'
35. A ( Shall → Would )
→ Would you mind + V_ing: bạn có phiền ...
@ $Âu$