workingHe’S working hard for fear that he_________．
(1)【◆题库问题◆】：[单选] He’S working hard for fear that he_________．A．should fall behindB．fell behindC．may fall behindD．would fall behind
标签：working
By the time you arrive, I ________ working for two hours．
(1)【◆题库问题◆】：[单选] By the time you arrive, I ________ working for two hours．A．will beB．canC．will have beenD．have been