The professor, ________ his assistants, _______ conducting the experiment.
—I’m thinking of the test tomorrow. I’m afraid I can’t pass this time. —________!I’m sure you’ll make it.
I have devoted four weekends to writing papers and now I feel I ________a rest.
Some people ________cruel experiments on animals ________science.
—Did you remember to give Mary the money you owed her? —Yes. I gave it to her ________I saw her.
_____ to finish this composition in such a short time is a mystery.