Our classes _____ at 8:00 in the morning_爱下问搜题

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问题选择题

Our classes _____ at 8:00 in the morning.[ ]

A. begins

B. beginning

C. begin

D. are beginning

答案

答案：C

选择题

The little boy, ________two attempts to climb over the fence of the garden, decided to have another try.[ ]

A. having made

B. making

C. made

D. has made

选择题

⊙O₁的半径为3厘米，⊙O₂的半径为2厘米，圆心距O₁O₂=5厘米，这两圆的位置关系是[ ]

A.内含

B.内切

C.相交

D.外切