The box is so heavy that he cannot lift it. _______, he is only a ten-year-old child.
155. The teacher was a little angry because the students didn’t _____ their exercise books on time.
187. Yesterday we had a long meeting whichfour hours.
186. I only _______ him from my wife, but I have never met him.
185. Hello! I_______ you _______ in London. How long have you been here?
184. There's no wind now. We can't _______ kites on the playground.