-- Could you help me find some information on the net?--I’m occupied now. _______, I’ll do it later.

The police are ______ to conclude that the cause of fire was a cigarette end.

I am going to the airport to meet my uncle tomorrow morning, _____ he will be back from abroad. 

I’m afraid we can’t come, but thanks for the invitation_________.

Cloning plants is straightforward while cloning animals is _____________ more complicated.