It’s difficult _______ me _________ my diet.
Is it only recently ___ he has had a family himself?
________, I don’t object to your marriage though your parents are strongly against it. [ ]
I won’t tell the student the answer to the math problem until he on it for more than an hour.
Li Ping, your cousin speaks fluent English, like a native speaker.—No wonderHe once _____ in New York for two years as a visiting professor