【1】He___________ (visit) theGreatWalllastyear.

【2】We____________ (have) agoodtimeyesterday.

【3】Weoften__________ (go)toschoolbybuslastyear.

【4】I__________ (live) inthevillagewhenIwasachild.

【5】Mike__________ (see)abigtigerinthenatureparklastyear.

【1】worked原形_____

【2】went 原形_____

【3】played 原形_____

【4】watched 原形______

【5】finished 原形_______

A.What, watchB.Do, watchC.Did, watch

A.cleanB.cleanedC.cleans

A.didB.doesC.do

A.todayB.tomorrowC.yesterday

【1】请勿吸烟。____________

【2】小心地滑。____________

【3】在二楼____________

【4】野餐____________

【5】下周____________

【1】又脏又乱____________

【2】交朋友____________

【3】大年夜，除夕____________

【4】购物中心____________

【5】捡起____________

【1】We can ______(plant) more trees.

【2】We use plastic ______(make) bags and bottles.

【3】We shouldn’t ______(use) paper bags.

【4】—What ______(make) the river dirty? —Rubbish ______(do).

【5】Let’s go ______(shop) this afternoon.

【1】We all like ______(watch) fireworks and firecrackers.

【2】It makes the street ______(mess).

【3】Sam, you should ______(put) your rubbish in the bin.

【4】What can we do ______(keep) our city clean?

【5】There is a lot of ______(fish) in the river.