fast happen can stand 的a的音标哪个不同

fast happen can stand 的a的音标哪个不同 ANYTHING CAN HAPPEN怎么样 it can happen only Who can run fast? this can only happen in It can run fast.It run fast.哪个对It can run fast.It run fast. THEY CAN SWIM VERY FAST. He can’t_____(walk)fast. He can runs fast.改错 as fast s she can Can you ran fast改正 The boy can run fast 对run fast 提问 His father can run very fast.对very fast提问 Peter can run fast.划线提问,划线：fast That girl can swim fast.(run fast)改写句子 That girl can swim fast.(run fast)改写句子 as fast as+sb can =as fast as+? can she run fast?的意思