____you interrupt now? Can’t you see I’m on the phone?— Sorry Sir, but it’s urgent. [ ]

We celebrate our national day ______ 1st October every year.

It’s high time you . [ ]

It is generally considered unwise to give a child ________ he or she wants.

I haven’t been to Shanghai for years.—You really need to pay a visit, and you’ll find changes there are imagination (想象).