Professor Wang introduced us a new approach ________ learning a foreign language at yesterday’s meeting.
| A．with | B．about | C．on | D．to |
_________ he was, he still went on with his work.
| A．Tired although | B．Tiring as | C．Tired though | D．While tired |
It was the training ________ he had as a young man ________ made him so excellent.
| A．what; that | B．that; which | C．that; what | D．which; that |
Not until she took off her dark glasses ________ she was a famous film star.
| A．I realised | B．that did I realise | C．did I realise | D．that I realised |
It is ten years since we ________ each other last time.
| A．see | B．have seen | C．saw | D．had seen |
More wild tigers have been seen in the forest around this area, ________ there used to be very few.
| A．when | B．where | C．what | D．which |