问题

____________ all his hard work, he still failed to finish the task in time

A:Although
B:Even if
C:Even after
D:So long as

正确答案是：

同类题型

Military helicopters dropped food and medicine to the earthquake survivors that remained ______ inremote mountain villages.[ ]

The possibility _________ we won’t produce enough goods troubles everyone here

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Be careful with your machine, you’ll be hurt.