___ he was, he still went onwith his work.

.According to the test disciplines itis_______ that any student takes a mobile phone into thee may examination room.

They had beenfor many years.

When _____ Mr. Green _____ to the town—- Last December.

Have you heard that more flights from WuXi to Beijing are available this year—Of course. Many citizens are ____ for it’s quite convenient for them to travel.