关于时态部分总是有点糊涂,下面这个问题只是做完后想到的,请较大家一下 Radiocarbon dating of fossils taken from caves on islands along southeastern Alaska’s coast suggest that at least a portion of the area was remaining ice-free during the last ice age. A. suggest that at least a portion of the area was remaining B. suggest at least a portion of the area remaining C. suggests that at least a portion of the area remained D. suggests at least a portion of the area that had remained E. suggests at least a portion of the area to have remained 答案是C,关于这点我没什么异议。只是突然想到during的时态问题。如果D选项改为"suggests that at least a portion of the area have remained",那么这个答案是否也可以呢? |