—I hear that Tom can’t afford his schooling this fall— let’s do something for him．A. If

问题补充：

—I hear that Tom can’t afford his schooling this fall．

—, let’s do something for him．

A. If so

B. When necessary

C. When possible

D. If any

答案：

(答案→)A. If so

B. When necessary

C. When possible

D. If any

解析：本题考查省略用法。如果这样的话If so = if he can’t afford his schooling this fall.意为我听说汤姆今年秋天支付不起学费。如果这样的话，我们可以为他做点事。