问题
选择题
.When he was a boy, he used to go there and watch _____.
A.to repair bicycles
B.bicycles to be repaired
C.bicycles being repaired
D.repairing bicycles
答案
答案:C
.When he was a boy, he used to go there and watch _____.
A.to repair bicycles
B.bicycles to be repaired
C.bicycles being repaired
D.repairing bicycles
答案:C