The study suggests that it is more difficult to respond what to get rid of.
It is important for the teacher to show students how easy it is to understand something from authentic materials rather than how difficult it is to understand everything.（）
— The physics exam is not difficult, is it?—（）Even Harry to the top students failed in it.
Climate change makes it is difficult to predict how our nose will change.
It is very difficult to stop the cultivation of marijuana because _____.
The reason that it is difficult to theorize when the systems will be widely used is that .
The iceberg model of culture implies that it is very difficult to understand a culture thoroughly.
It is difficult to master a foreign language, but it ---- to make the effort.
Which English proverb is analogous to the Chinese equivalent, “Nothing in the world is difficult for one who sets his mind to it”?
It is difficult to ________ the success of the experiment at this stage.
It is difficult to make an analogy _______ cars and airplane.
It is point of honor with the customer not to let the shopkeeper guess what it is she really likes and wants until the last moment.
it is difficult to assess the importance of the decision．
It was difficult to guess what his___________ to the news would be.
It is not easy__________the answer to the difficult math problem.
It is not as difficult to store information as it is to________it quickly when it is wanted again.
According to the passage, we can guess it is safer to take a car driven by a woman because______.
It is difficult to refute his argument in our routine debate.
According to the professor, why is it difficult to classify remoras' symbiotic relationships？
阅读短文, W:What about going to visit the Science Museum today ,Tom? M:I'm afaid we can't .It opens only from 2:00 to 5:00 on Sunday afternoons. W:You mean we have to wait until tomorrow M:I guess so. Q:What day is it today ( ) A.Tuesday B.Thursday C.Saturday. 说明理由~
It is impossible to finish （) project as difficult as this within （) little time we
听力原文：W: How is your job at the supermarket M: Well, it’s rather hard work. The hours a听力原文：W: How is your job at the supermarket M: Well, it’s rather hard work. The hours are pretty long. I already feel difficult to keep up with my classmates. What is the man worried about （）
So fast _______ that it is difficult for us to imagine its speed（）
