Leonardo da Vinci (1452-1519) ____ birds kept in cages in order to have the pleasure of setting them free

Not only late, he also forgot his book.

_________, some famous scientists have the questions of being both careful and careless.

The factory used 65 percent of the raw materials, the rest of which ________ saved for other purposes.

The doctor always turned up he was most meededNo wonder he was called“doctor sent by God”