问题

She was joyful ________ seeing her son take his first steps.[ ]

A: as
B: upon
C: immediately
D: as soon as

正确答案是：

同类题型

A modern city has been set up in______ was a wasteland ten years ago.

He treated me a child.

You are _____ to be disappointed if you hope to go to college without hard work.[ ]

The parking meters are installed instreets to record and show the time _____ a driver has paid for is finished

m not feeling well in the stomach I ______ somuch fried chicken just now