he's been there (twice) before.(对括号单词提问)
he's been there (twice) before.(对括号单词提问)
He's been there twice before.就twice提问
He's been studying there for (two whole hours)?对括号提问
He has been there twice 划线提问twice
he has been there [twice]就划线部分提问【 】he been there
1)He uncle has been to Europe twice.(对画线部分提问)(画线部分是twice)
I have been there twice.(对划线部分提问)twice画线 ------ -------- ---
He read the book twice.(对twice提问)
对括号部分提问:He has been(to Shanghai).
he has been to the great wall twice.对twice提问
he has been there teice (twice划线)
Lucy's mother goes to Beijing (twice a month).对括号部分提问.