他没回来,butI am expecting him to arrive_ Aat any time Bat the time C at one time Dat this time

but I am expecting him to arrive at this time .我希望他现在就到来

at some/any/that time 未来不确定的某个时间

He is performing as well as at any time in his career.The UK has 500,000 stray dogs on its streets at any one time (=at any particular time) .

at a/the time when ...
At the time when this scheme was introduced, it was recognised that there might be problems.

A：任何以后的某个时间
B：在特定的一个时间（未指定）
C：一次
D：现在

答案是D
理由：am expecting现在时态
A的话，am expecting可以改为expect
所以D最佳
“他没回来，但我希望他此刻能来”

D at this time此时，这个时候
他没回来，但是，我希望他此时能到。

A。他没回来，但是我会一直期待他随时回来。
A 随时。