Onlywhenthewarwasoverin1918

問題詳情：

Only when the war was over in 1918________get happily back to work.

A．did he able to                  B．was he able to

C．he was able to                  D．he did able to

【回答】

B　only修飾時間狀語從句，位於句首，主句要用部分倒裝，排除C、D兩項；be able to能，會；排除A項。故選B。

知識點：倒裝與省略

題型：選擇題