I joined the League _________ May, 2008. What about you —I’ve been a League member __________ three years.

120. Please _____ an envelop clearly. Otherwise, your letter can’t be delivered.

do you go to the movies —Sometimes.

They are said to have developed a new ______ to teaching ,_______ is bound to improve classroom teaching greatly.

You should take off your shoesbefore you ＿＿＿the new flat.