---Do you know ______ I could pass the exam? ----Sorry, I’ve no idea.
—I often feel worried about exams. I don’t know _________it.—Maybe you can ask your teacher for help.
Wearing red makes easy us to take action.
—Which do you like better, tea or coffee?—I prefer coffee ________milk.
You can never imagine what great difficulty I had _________ your house.
Mr Ma prefers ______ his dog after supper _______ him relaxed every day.