Complete the sentence with had to/ didn't have to or could/ couldn't. a) sorry i'm late. i take the dog for a walk before i left. b) i looked for my keys for ages, but i just find them! c) i be home early last night. d) we go to school yesterday, so we played football at the park. e) when helen was eight, she swim really well. f) i answer the question, so i asked my teacher to help me. g) we missed the last bus, so we walk home. h) sue see the board, so she moved to another desk.
b) couldn't
c) had to
d) didn't have to
e) could
f) couldn't
g) had to
h) couldn't