Four thousand kilometers _________ not a short distance.

When he learned that his brother had returned from abroad, he set off to his home _____ Whichof the following is not OK? [ ]

It’s_______Mr Zhang _______teach us English.

Hello, Sandy. This is Jack. What are you doing— I’m watching a match. It started at 7 p.m. and _____on for another half an hour.

of ALIBABACOM，first touched a computer in1995, _______ he visited a friend living in Seattle