So sudden ______ that the enemy had no time to escape.
Historically, _______ main material for making tables has been wood, but ______ metal and stone have also been used.
-I’d rather have some wine, if you don’t mind. -_______.
_______ we know, hurricane is _______ to come.
Computer cannot remember who _______; it simply does what _______.【译文】电脑不可能记住谁用过它;它只能按照指令执行。
_______ we call the First Aid Centre, the doctors _______ by and by.