写出下列动词的过去式。
（1） work ____________（2） study ______________（3） look _______________
（4） live _____________（5） plan _______________（6） have _______________
（7） use _____________（8） carry _______________（9） stop _______________
（10） are _____________（11） bring ______________（12） buy _______________

用所给词的适当形式填空。
（1）He ____ ( walk ) to school yesterday.
（2）My friend ______ ( bring ) gifts for me tomorrow .
（3）She often _______ ( eat) ice cream.
（4）I _____ (go) to the park next week.
（5）We ______ (buy) some milk last night.

( ) Li Ming usually ________ to school by bike.
A. go B. went C. goes

( )What ________ you going to do tomorrow?
A. am B. are C. is

( ) Mr. Smith _______ a new car yesterday.
A. buys B. bought C. will buy