—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.
“We can hardly wait to see him” has same meaning as _________.
Have you seen Tom recently? I wonder ______ with his students.
It was because of bad weather ____ the football match had to be put off.
All examinations are passed. This is the first time I ____ really relaxed.
She insisted that we ________ the source of the river and begin our journey there.