单句语法填空
【小题1】When __________ (offer) help, one could say “Thank you” to express his appreciation.
【小题2】The boy sat in the room, __________ (read) a book attentively and not noticing his mom coming in.
【小题3】It is necessary for children to make a distinction __________ what is right and what is wrong.
【小题4】If you __________ (listen) to me, you wouldn’t have made so many mistakes.
【小题5】The research of the UFO, __________ (carry) out by researchers from some countries, still remains unclear now.
【小题6】As long as he __________ (get) my letter in time, he will be able to change his plans.
【小题7】Lacking enough evidence, we found the problem __________ (difficulty) to settle.
【小题8】He can’t stop __________ (think) of the experience when he sees the picture.
【小题9】China now holds over 40% of the world’s top 500 supercomputers, as well as __________ (occupy) 2 places in top 10.
【小题10】Good teaching closely __________ (relate) to good testing systems can work well.