If you are in trouble Mike is always willing to a hand .A. lendBshakeCwaveDwan

问题补充：

If you are in trouble , Mike is always willing to a hand .

A. lend

Bshake

Cwave

Dwant

答案：

(答案→)A. lend

B. shake

C. wave

D. want

解析：考查动词搭配：A. lend 借，B. shake摇晃，C. wave 挥动，D. want想要，lend a hand“助一臂之力”，句意：如果你有困难，玛丽总是愿意帮忙的。选A。