It was so quiet. There was almost no wind – only the flames of our fire for _____________.
| A．sightseeing | B．keeping warm |
| C．company | D．fun |
____can be done _____been done.
| A．All； have | B．All that； have | C．All； has | D．All that； has |
The Chinese people _____hard-working and brave.
| A．are | B．is | C．has been | D．are being |
Nobody ____to smoke in the cinema.
| A．allows | B．allow | C．is allowed | D．are allowed |
The air in big cities _____very dirty by factories.
| A．are often made | B．is often made | C．have often made | D．has often made |
The number of people invited _____fifty， but a number of them _____absent for different reasons.
| A．were； was | B．was； was | C．was； were | D．were； were |