Peter ______ be really difficult at times even though he’s a nice person in general.

—— Will you stay for lunch? —— Sorry, ＿＿＿＿＿. My brother is coming to see me. 

The biggest problem for most plants,which_______just get up and run away when threatened,is that animals like to eat them.

We _____ John’s name on the race list yesterday but for his recent injury.

--Oh? ______ you leave ? Stay a bit longer.-- Sorry, I’ve got an early start tomorrow morning