动词填空用括号内所给动词的适当形式填空，并将答案写在答卷标有题号的横线上。（本大题共8分，每小题1分）【小题1】If you have visited(visit) gardens

动词填空 用括号内所给动词的适当形式填空，并将答案写在答卷标有题号的横线上。（本大题共8分，每小题1分）
【小题1】If you have visited (visit) gardens in Suzhou, you can go hiking in Lushan Mountain.
【小题2】Jack, one of my buddies, kept nodding (nod) his head as if he completely understood what I said.
【小题3】When his father came from work, his motherhad ironed (iron) his shirts already.
【小题4】---Must the letter be written (write) before class is over?
---Yes. The earlier, the better.
【小题5】If you are not (not be) careful, you may hurt yourself.
【小题6】---Can you see what is happening (happen) over there?
---No, let’s go and have a look.
【小题7】It seemed hopeless to get (get) inside because the line was so long.
【小题8】He told me that hewould not attend (not attend) the conference until he was invited.

解析：【小题1】句意：如果你已经参观过了苏州的园林，你可以去庐山徒步旅行。结合语境可知前文条件从句中描述的是现在已经完成的动作，故用现在完成时态，主语you是单数第二人称，故助动词用have，填：have visited 【小题2】句意：杰克，我的好朋友之一，一直在不停地点头，好像他完全明白了我说的话。Keep doing sth一直做某事，故填nodding点头。【小题3】句意：当他父亲上班回来时，他的母亲已经熨好了衬衫。结合语境可知下文描述的是过去某时已经完成的动作，故用过去完成时态。故填：had ironed。【小题4】句意：这封信必须在下课前写好吗？——是的，越早越好。结合语境可知上文主语是动作对象，故用被动语态，填：be written。【小题5】句意：如果你不小心，你可能要伤到自己。结合语境可知从句描述的是客观性状态，故用一般现在时态，主语you是第二人称，故系动词用are，填：are not 【小题6】句意：你看见那边正在发生什么吗.——没有，让我们去看看。结合语境可知上文从句描述的是现在正在进行的动作，故用现在进行时态。主语what为抽象名词，不可数，故系动词用单数，填is happening。【小题7】句意：好像没有希望进去，因为队伍太长了。不定式做目的状语表示具体的将要进行的动作，结合语境可知填to get到达，获得。【小题8】句意：他告诉我直到他被邀请了他才会参加这次会议。结合语境可知从句描述的是站在过去角度看将来发生的动作，故用过去将来时态。填：would not attend

就是这个解释