Question

The time and effort he has devoted during the past few years____ trees in that remote area is now considered to be of great value．

A．to plant

B．to planting

C．plant

D．planting

Answer 1

B

解析試題分析：句意為：他在過去的這些年里在那個(gè)偏遠(yuǎn)的地區(qū)種樹所付出的時(shí)間和精力被認(rèn)為是值得的。短語devote sth to sth 中to的詞性是介詞，故to之后應(yīng)為名詞或動(dòng)名詞形式。此處表示把時(shí)間和精力花費(fèi)在了種樹上，所以應(yīng)為devote time and effort to planting trees.所以答案應(yīng)為B。
考點(diǎn)：考查短語的用法。