_____ the absence of the manager, we were unable to decide on the date of the celebration．
| A．In spite of | B．On behalf of |
| C．Due to | D．Regardless of |
It was last Saturday ________ we visited the History Museum.
| A．which | B．and | C．where | D．that |
I suggested that the problem _____as soon as possible.
| A．referred to being solved | B．referred be solved |
| C．referred to be solved | D．referred should be solved |
When ________ to the market, these products were very popular.
| A．introducing | B．introduced |
| C．introduce | D．being introduced |
His English, ______ used to be very poor is now excellent.
| A．which | B．that | C．it | D．whom |
---- Why don’t we choose that road to save time?
---- The bridge to it _________.
| A．has repaired | B．is repaired |
| C．is being repaired | D．will be repaired |