It has been the tenth day since we climbed the Great Wall中的的since的意思及词性

翻译 that is just the way it has always been It has been my fate to meet with the accident. It is reported that the British destroyer has been sunk. the payment has been successful,it is mobile website screenshot It has been 反意疑问句It has always been the problem that...这样的句型反意疑问句是什么 It was the second time that he _to Europe A has been B had been Has it been been announced if the planes are to take off?这个句子对吗? it has been since.用法 It has been in my it is/has been= It's has been accepted it has long been assumed They ____a new tent for the camping trip.横线上填have还是has? The tall tree ______ there for many years but it has been cut down.为什么是was 而不是has been Hi there,It has been brought to our attention by a constituent,that your group has been using the It's hot .The temperature___35 degrees A has been raised at B has risen to C has been risen forD has raised 答案为什么是B?raise at which 后面为什么还用has been 这个时态,我认为应该用过去完成时A new machine called 'The Revealer' has been invented and it has been used to detect gold which has been buried in the ground. There is nothing new under the sun.It has all been done before.There is nothing new under the sun.It has all been done before.