_______, you need to give all you have and try your best.
More and more women are working in this factory, ______ more than 40% of the workers.
To tell you the truth, I have a hard time remembering all the ______ rules of English grammar.
—You haven’t returned my chemistry textbook yet. —I know, but I ________ it for five days.
—You haven’t returned my chemistry textbook yet.
—I know, but I ________ it for five days.
David left word with my secretary ________ he would call on me in the afternoon.
Why do you turn off the light in the room? We are in total ______ now and I can’t see anything.