sam visited his uncle last night .对visited his uncle提问.
问题描述:
sam visited his uncle last night .对visited his uncle提问.
i cleaned the kitchen in the morning.对cleaned the kitchen 提问
答
1 What did Sam do last night?
2 WHat did I do this morning.denis helped his brother do huosework?改一般疑问句Did Denis help his brother do housework?