—Oh, it’s you. I didn’t ______ you just now!—That’s because I have just had my hair cut and I’m wearing new glasses.
43. ______ he was absent, I was expected to take his place greatly surprised me, for I didn’t have much experience.
42. You’d better start it right away ______ you forget it.
41. If it ______ for the fence, he ______ into the river.A. were not; fallen B. had not been; could have fallen C were not; could fall D. had not been; could fall
40. I could have offered you some help last weekend, but I ______ with my work at that time.
39. ______ choice you make matters little to the final result of the discussion.