Having been told that her son died in the accident, the old woman appeared very calm, as if nothing（）

（） ten minutes earlier, you wouldn't have missed the tr...

单项选择题（） ten minutes earlier, you wouldn't have missed the train．But you were late.

—How are their talks going on Have they reached any agr...

单项选择题—How are their talks going on Have they reached any agreement —They only seemed to have agreed to set another date for （） talks.

Although he knew little about amount of work done in th...

单项选择题Although he knew little about amount of work done in the field, he succeeded （） other more well-informed experimenters failed.