It is said that Yancheng﹣Nantong High﹣speed Railway _______ in December， 2020．（ ）
A．completeB．is completed
C．was completedD．will be completed
The king didn't take any notice of the noise in the crowd and __________ with the parade．（ ）
A．carry onB．carry out
C．carried onD．carried out
Do you watch Peppa Pig on TV？ It's so funny!
Well， no， to be __________， I think it's quite silly．（ ）
A．curiousB．braveC．gentleD．honest
Didn't you see the zebra crossing？ You __________ slow down， son!
Sorry， sir． Am I going to fail the test？（ ）
A．can'tB．canC．mustn'tD．must
It's not __________ to be friendly． You have to be a friend． Go and talk to Sam．（ ）
A．good enoughB．late enough
C．too goodD．too late
He stayed up very late that night． __________ he woke up in the morning， the sun was already high up in the sky．（ ）
A．UntilB．AfterC．WhileD．As