Such good use has been ___ ___ his spare time ___（以至于）his English has improved a lot.填空

题目

Such good use has been ___ ___ his spare time ___（以至于）his English has improved a lot.填空

答案

made of ,that.其实是make such good use of his spare time.他把空闲时间利用地如此之好.that 其实是和前面such相对应的,来构成so that 或者such that 从句.
希望能让你明白.