------ Can I help you? -------- No, thank you. I __________ now.
.With an electronic typewriter ,we can get evenly typed characters regardless of the pressure ________we strike the keys.
二、从句、主谓语一致、虚拟语气类、.------Is that the small company you often refer to?----Right,just the one ______you know I used to work for years.
. Why _____ the car break down just when I was about to start?A must B can C may D need
..Everyone in the building can hear Tom’s words:“Mother, the window _____.please come to help me.”A can’t be shut B. will be shut C. doesn’t be shut D. won’t be shut
.-----I_____ asleep while I was reading.-------It doesn’t matter.