The results showed that the average number of daily steps of people across the world is / was 4,961,according to an article published in the journal Nature.请问一下这个宾语从句里面的 be 动词填 is 还是 was?
The Brief History of Time ___ by Steven Hawking. It is a great book about science.A is written B was written 难道该句子只能用被动态的过去时?有无可能用一般现在时来被动表示“客观的常识,还有常态化的含义?
“If you don't mind,I'd sooner you ______your violin somewhere else.”My
landlord cried.请教一下老师,答案有A.would practice B.can practice C.had practiced
D.practiced,为什么选C呢?
Clever as he was, he found it difficult to solve the problem.这里用过去时是不是不太好?(暗示he现在不clever了?)我觉得应该用现在时,改成下面这样:Clever as he is, he found it difficult to solve the problem.请问我理解得对吗?