Thosetrucks,filledwithallkindsofreliefsupplies,are

問題詳情：

Those trucks, filled with all kinds of relief supplies, are ________ to the earthquake­stricken areas.

A. speeding up                          B. keeping up

C. holding up                           D. putting up

【回答】

A　

知識點：動詞

題型：選擇題