It is said that an unknown number of books _____ been stolen from the library. (have, has)
请问答案是选单数 has 还是复数 have？按理说 a number of... 作主语是要用复数谓语的，但 an unknown number of... 的意思是“数目不详的……”，而&ld...
Officials familiar with the calls say the efforts have not beena departure from the administration’s efforts over the past year to push oil producers to keep production levels high after Russia’s invasion of Ukraine, which has roiled global markets. (from The New York Times)1. over the past yea...
...听第8段材料，回答第11至13题。11. What did David do on his most
recent holiday?A. He had a boat trip. B. He took a balloon flight. C. He climbed a mountain.12. What is on David's list?A. Gifts he needed to buy. B. Things he wished to do. C. Dates he...
...he rules of the
contest. 他们承诺遵守比赛规则。The decision hasbeen made, and we must all
abide by it. 决定已经作出，我们必须遵守。Generally, journalists abide by an agreed
code of practice. 一般来说，新闻记者都守既定的行规。【派生】□abiding
a.由...
...现代英语语法》赵俊英，1186页。该书认为是对的。The man hasa gun and threatened to use it. 这句的hasa gun 的has是实义动词，has threatened 的是助动词。这句话摘自《大学英语语法》许广联，该书认为这个用法是错的，应该加上省去的助...
...; D. will act2. —We’ve spent too much money recently. —Well, it isn’t surprising. Our friends and relatives_______ around all the time. A. are coming B. had come ...
...动词。常与for（+时间段）,since（+时间点）连用. Mary hasbeen ill for three days.Mary hasbeen ill since three days ago这种用法和现在完成进行时的表示从过去某时开始一直持续到现在的动作,并且还将持续下去.的用法有何区别It hasbeen raining fo...
... last moment. Book reports weren’t written until the final threat.I’ve beena newspaperman all my adult life. My daughter is a university graduate working toward her master’s degree in English. But Jody? When he entered the tenth grade he became a “vo-tech” student (技校学生). They’r...
The
government hasbeen urging the courts to play more ofa role in restructuring
debt, as they do in America, with its Chapter 11 procedure. the courts是中国的，为何在从句中用了they呢？我觉得用those更好些。谢谢各位老师！
...ovements of the Highlands armies, the English were afraid that if they let anyone wear the kilt it would spark the ideaof revolution.请问第二句话是不是存在语法问题？从结构上看“ The reason being that because of the swift and competent movements of the Highlands armies”...
...obabs is so little understood, and such considerable risks would be run by anyonewho might get lost on an asteroid, that for once I am breaking through my reserve. "Children," I say plainly, "watch out for the baobabs!"请问文中的"run"怎么理解？