问题
选择题
—Shall we go now?
—Yes. There is a bus _____ at the gate. [ ]
A. wait
B. waiting
C. wait for
D. waits
答案
答案：B
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—Shall we go now?
—Yes. There is a bus _____ at the gate. [ ]
A. wait
B. waiting
C. wait for
D. waits
答案：B