Chinese government should ______ taking action at onceto defend the Diaoyu Islands

arnt both business and history, but she knows________of them well, thoughshe can speak on subjects in general

The train ＿＿＿＿＿ at the present speed until it reaches the foot of the mountain at about nine o’clock tonight

Bruceoften asks me ______ him to play the guitar.

Farmers in China began to use tractors ___cattle for farming work.