Completa com "can" e "can't".
Oh my son! Where's my key? I (1) _____ find it. Oh look! It's on the dining room table. I (2) _____ see it. Now what am I going to do? I (3) _____ get in. I (4) _____ climb the tree to the window on the first floor. It's too high. I (5) _____ phone for help because I haven't got my mobile with me. Hey, what's that noise in the kitchen? I (6) _____ hear something. Oh good, it's Sue. She's at home. Great!