—I have trouble _____ my new computer. —Don’t worry. I’ll show you how ____it. A. using, using B. to...
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题目内容：
—I have trouble _____ my new computer. —Don’t worry. I’ll show you how ____it.
A. using, using B. to use, to use
C. using, to use D. to use, using
本题链接：
