To improve your spoken English, you’d better listen to the tape __________.
--- Mum, why do you always make me eat an egg every day ? --- ____ enough protein and nutrition as you are growing up.
He transplanted the little tree to the garden _____ it was the best time for it.
“Is there _____ here?” “No, Bob and Tim have asked for leave.”
I'll come to see you if _____.
—Must I turn off the gas after cooking ? —Of course . You can never be _______ careful with that.