问题
It’s four o’clock in the afternoon. The boys __ in the pool.
A:is swiming
B:are swiming
C:are swimming
D:is swimming
B:are swiming
C:are swimming
D:is swimming
正确答案是：
同类题型
This is Tony’s.visit to Jinan. He has been here once before.
Won’t you like to come to Li lei’s birthday party?－I will if I ______
Dad, _____ is my friend , Xiao Hua. –Hello, Xiao Hua.
May I go now? — No. You ______________ let the teacher know first.”
How was your trip to Hang Zhou, Jim?—Great! We ___ to Xixi National Wetland Park.