—When did your cousin begin to show his interest in medicine?—It was a Saturday ___ she noticed her uncle experimenting on a frog in his lab.
The school board listened quietly as Jack read the demands that his classmates ______ forward.
She may have missed the train, ______ she won’t arrive for another hour.
— Jack, this is the third time that you have been late this week. — Sorry, sir, but I was ______ for 15 minutes on the way here in the traffic jam.
Without that conversation between them, they would ______ be able to avoid mistakes.
The zoologist is telling the visitors how a horse’s vision differs from ______ of a human.