---Do you think he will do me a favor?---As far as I know, he is the last one ___ others. He ___ be prepared to give you a hand, though.
My mother always gets a bit _________ if we don’t arrive when we say we will.
At times, worrying is a normal, ________ response to a difficult event or situation --- a loved one being injured in an accident, for example.
This cake is very sweet. You _____ a lot of sugar in it.
He paid for a seat, when he ______ have entered free.
— The woman biologist stayed in Africa studying wild animals for 13 years before she returned. — Oh, dear ! She ______ a lot of difficulties !