Tea wasn't introduced into Europe until the early 17th century. And now it has _______ popular in Europe and America.这道题给的答案是become,请问可不可以用been呢?如果不行,为什么呢?
However, doctors have begun
to look into laughter and the ______(affect) it has on the human body .请问各位老师这个句子该如何分析,为什么在the后面填的是动词affect呢?搞不懂为什么the后面接的是动词?
...couraged to book tickets on the Internet and stay
away from busy hours when________.(visit)答案给的是visiting,when visiting在这道题中相当于when they are
visiting吧,那意思不就变成“正在参观”了吗,但题目里给我一种“将来”的感觉,“打算参观的时...
...ared bikes are making public transport more attractive and convenient,and____(encourage)people to be more active.这里填encouraging,and连接making public transport more attractive and convenient和encouraging people to be more active.那可不可以填encourage,理解为:and连接are...
请看下面这道题:Programs are expensive, and ________ if you have to keep altering them.A. ever much so B. even more soC. so ever more D. so even more请问该选哪个选项?给定的参考答案是B。如果答案是对...
有这样一题:
The oil ________ (discharge) into the sea seriously harmed a lot of birds and animals.
老师提供的答案是:which discharged。但如果只填discharged对吗?或者填which was discharged可以吗?因为discharged可用作及物和不及物动词啊!
If you____me,I shall be grateful to you. A.helped B.will help C.are helping D.will be help I wonder why they’re late
They____the train. A.can have missed B.could miss C.may have missed D.might miss