___ he was ill, I was expected to take his place greatly surprised me
for I didn't have much working experience.
| A．If | B．That if | C．That | D．If that |
The restaurant must be crowded from ________number of cars parked in front of it,________?
| A．a;isn’t it | B．the;isn’t it | C．the;mustn’t it | D．a;mustn’t it |
As we know,Beethoven is the greatest musician ________.
| A．for all the time | B．of all time |
| C．by all times | D．at all times |
A big disaster took place in ________1960s when I was in ________teens.
| A．the;the | B．the;/ | C．/;my | D．the;my |
Scientists have found no ________of life on Mars so far,though great efforts have made on the research.
| A．symbols | B．signs | C．marks | D．signals |
A lot of people were made tired of the lecture which ________as long as four hours.
| A．kept | B．went on | C．continued | D．lasted |