— Is Jack on duty today? — It ________ be him. It's his turn tomorrow.
We could see that he was trying to _____ his own responsibility for the delay, instead of accepting his fault.
Our attitude toward our teachers should be _____, but not slavish or superstitious.
It was difficult to guess what her _____ to the news would be.
_____ the English examination I would have gone to the concert last Sunday.
Most people who have AIDS manage to____ only a few years after they get the disease.