In his summary of the causes that _______the Industrial Revolution in England in the 18th century,he said it was the accumulated capital that played the most important part. [ ]

If the food tastes nice, we will buy some; if ________, ________.

I had hoped Mr.Blake ___ earlier than usual.

rst baby was born soon after he gotmarried, which seemed to have ___his sense of responsibility.

Students be allowed to use mobile phones at school.— I agree．Phones can bring troubles.