peter and nick are ___（twin） ___(brother)

peter and nick are ___（twin） ___(brother) Nick and Peter are happy(改成一般疑问句） nick and peter are helpful改成一般疑问句 Peter and nick are cousins 改为一般疑问句 is peter and Nick your friends(改错） 不知道如何转换句型.怎样把句子转换为一般疑问句Nick and peter are happy.lily is tall and slim. Are these English dictionaries?作肯定回答 _________,they____________.Are those my rulers?作否定回答 ________,they________.Nick and Mary are his father and mother.改为同义句 Nick dan Mary are____________.Is this aphoto?改为复数句 _ They are Lily and Nick.(同义句)______ _______ are Lily and Nick. they are jim and peter对jim and peter提问 改错1,Is Peter and Nick your friends.2,She is from english. The model plane is(Nick and Peter's).对括号部分提问.为什么这样写? Robert and Nick are in the same school Nick and Andy are classmate.[改为一般疑问句】 Peter and Tom are my c( ) are peter and john twin brothers? peter and Ben are boys.的疑问句 Peter and Danny are c（ ） Their names are peter and Lily.Peter and lily are the names of two （ ）