I’d like to go swimming with you; ___, my hands are full at the

I’d like to go swimming with you; ___, my hands are full at the moment.
A、however
B、wherever
C、whatever
D、whenever
【正确答案】：A
【题目解析】：however 然而；wherever 无论在哪里；whatever 无论什么；whenever 无论何时；句意：我想和你一起去游泳;_____我现在很忙。因此A符合题意。