求救：补充885，219，220

bus2zq

219.    By showing that South Africa does not have a free market and is in fact a kind of collectivist welfare state for Whites only, Sowell argues that American conservatives have no valid ideological grounds to be in sympathy with the Pretoria regime.
(A) to be in sympathy with
(B) to sympathize with
(C) for sympathizing with
(D) that they should sympathize with
(E) that they should have sympathy for
220.    Because Halley’s comet changes orbit slightly during the seventy-six-year interval between passing close to Earth, it may veer onto a collision course with a planet sometime in the distant future.
(A) between passing
(B) of passing
(C) between its passes
(D) of its passes
(E) as it passes
对这两题的正确答案不是很理解，请高手指教。

merlion

一点想法， 请NN指正
字典上的  ground: I): a basis for belief, action, or argument -- often used in plural  II (1) : a fundamental logical condition (2) : a basic metaphysical cause
个人理解 当ground 做上种意思讲时， 连接 for 是惯用法。