单选题
I"ll lend you these books as long as you ______ to the library in time.
A、
will return them
B、
return them
C、
has returned them
D、
returned them
【正确答案】
B
【答案解析】
[解析] 本题测试时态呼应。as long as，as soon as，when，if等引导的条件句和时间句中主句用一般将来时，从句用一般现在时来代替将来时。
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