Thehseasonisabusybuthappytimef-优题课

The h__________ season is a busy but happy time for peasants.

科目英语题型单词拼写难度中等

Those scientists are _____(探索) all possible ways to cure the disease.

Have you ever been s_____ in a traffic jam?

They have found the————（解决办法） to the traffic problem.

There are four underground lines in Beijing, and several lines are under _______(建设)

You can’t pass the entrance without a p_____