ithas A: since B: until C: after D: be

Ithas<spanstyle="text-decoration:underline;">一条短尾巴</span>.<br/>____

Ithas been fouryearssinceJohn________school. A: hasleft B: hadleft C: left D: wasleft

—What’sthematter,Jenny?—__________somethingwrongwithmybike. A: Itis B: Thereis C: Ihave D: Ithas

Ithas taken him a long time to come to terms ______ the fact that he won’t beable to go to college. A: with B: on C: in D: to

The letter must have sat in the drawer for such a long time that ithas become yellow. A: yellowed B: has yellowed C: yellow D: is yellow

Ithas been almost 20 years since we __________ from here.?xml:namespace&gt; A: graduate B: have graduated C: graduated D: were graduated

Ithas been quite some time since we_________________you at your office in Beljing（2019年6月第30题） A: visit B: visited C: havevisited D: hadvisited

Questions14—17 are based On the following dialogue about Santa Catalina Island． What do welearn about Avalon（） A: It isknown for ice cream． B: It is famous for golf carts． C: Ithas many modem shops． D: It has a small population．