John is the tallest boy in the class,______ according to himself.[ ]

(2013·高考四川卷)—Why are your eyes so red? You________have slept well last night.—Yeah，I stayed up late writing a report.

What are you looking for— I’m looking for the watch ______ I bought yesterday.

I hear they will build an intercity railway _______Jintan _________ the cites in Changjiang Delta (长江三角洲) in the following years.

He invited me to a dance after the show ________ Christmas Eve