_______ she was invited to the ball made her very happy.

What’s that—It’s an______________.(下列选项哪个不对)

The pregnant woman is about to give birth to a baby, so we’d better ________ a doctor immediately.

It is _____ English is being widely used at present _____ we learn it hard.[ ]

I’m going to Shanghai on business this afternoon, so I have to _______ my things now.