it is possible that Casper might still be in his office .
perhaps David might be ill ; that's why he hasn't showed up today .
perhaps Donna may be working ,that's why she's not answering the phone .
let's hope she may not be busy .
Edward is not here . do you think he might be having lunch ?
do you think they might be at home ? they left early .
it is possible that Jim may still be talking to Mona .
