It’s noon. the mail should be here soon. it (deliver, usually) sometime between noon and one o'clock. 2.only five of us (work) in the laboratory yesterday when the explosion (occur) . luckily, no one (hurt) 3.i was supposed to take a test yesterday, but i (admit, not) to the testing room because the examination (begin, already).4.before she graduated last may, susan (offer, already)a position with a law firm. 5.right now a student trip to the planetarium (organize) by mrs. hunt. you can sign up for it at her office. 6.he is a man whose name will go down in history. he (forget, never).7.a: yesterday (be) a terrible day.b: what (happen) ? a: first, i (flunk)a test, or at least i think i did. then i (drop)my books while i (walk) across campus, and they (fall) into a mud puddle. and finally, my bicycle(steal).b: you should have stayed in bed. 8.yesterday we went to look at an apartment. i really liked it, but by the time we got there, it (rent, already).9.during the family celebration, the little boy was crying because he (ignore) he needed some attention, too. 10.a: where (buy, you)that beautiful necklace? b: i (buy, not)it. it (give) to me for my birthday. (you, like)it? 11.the sun is just one of billions of stars in the universe. as it travels through space, it (circle)by many other celestial bodies. the nine known planets (hold)in orbit by the sun's gravitational field. the planets, in turn, (circle)