—When can we make an appointment with you , sir ?
—What about Wednesday afternoon ?
—OK．_______
| A．Do you have time then ? | B．It doesn’t suit me． |
| C．That’s settled． | D．It’s so nice to meet you． |
_________ he was, he still went on with his work.
| A．Tired although | B．Tiring as | C．Tired though | D．While tired |
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 |
It is usually warm in my hometown in March, but it ________ be rather cold sometimes.
| A．must | B．can | C．should | D．would |
You can never be ________ when crossing the street．
| A．very careful | B．too careful |
| C．carefully enough | D．enough careful |