User present perfec tense after becauseexample :she can't go the party (catch a cold)she can'tgo the party because she has caughtva cold1) He can't walk very fast (hurt / leg)2)I can't get in (lose / ?

User present perfec tense after because example : she can't go the party (catch a cold) she can'tgo the party because she has caughtva cold 1) He can't walk very fast (hurt / leg) 2)I can't get in (lose / key) 3)I now this story very well(see the film) 4) I can't post the latter (not put / stamp / on it) 5)He can't stand up (eat too much) 6) they can't go on holiday (not save / money) 7)I know him(meet him before) 8)we don't know how he is(not hear from him) 9)He won't take a cigarette (give up smoking) 10) She can't get in (he / lock the door).