句型转换。
按要求改写下列句子，每空只填一词。
（1） They had a good time in Beijing.(改为同义句)
They ________ ________ in Beijing.
（2） I learn English by listening and speaking.(对画线部分提问)
________ ________ you ________ English?
（3） She went to Beijing last year.(改为否定句）
She ________ ________ to Beijing ________ ________.
（4） Tom does his homework carefully. (改为感叹句)
______ ______ Tom ______ his homework!
（5） Mary, water the flowers.(改为现在进行时）
Mary ________ ________ the flowers.