The new means of transport ________ in this city, so whether it will work out remains to be seen.
| A．have never tried | B．has never tried | C．have never been tried | D．has never been tried |
26. People are not allowed ______freely at the meeting and they don’t allow ______either.
| A．talking; to smoke | B．to talk; to smoke |
| C．talking; smoking | D．to talk; smoking |
Traditional works of art from different provinces ______at the culture show of the 2010 Shanghai World Expo.
| A．are displaying | B．is displaying |
| C．are being displayed | D．is being displayed |
一Professor Li, ______the student start at once or wait a while?
一At once.
| A．will | B．shall | C．can | D．may |
Those who are not active or______ diet is high in fat will put on weight quickly.
| A．what | B．that | C．which | D．whose |
He is kept in the dark and is not _______ that the company is losing money.
| A．known | B．known about | C．aware | D．aware of |