A kind passenger paid for my ticket, without which I _______ the last train.
| A．couldn’t catch | B．couldn’t have caught |
| C．didn’t catch | D．hadn’t caught |
Along the either side of the street _______ two lines of trees.
| A．has | B．have | C．is | D．are |
______ interested us most was ______ he saw last night.
| A．It; what | B．What; what | C．What; how | D．It; how |
We make ________ that whoever leaves last turns off the light.
| A．it a rule | B．a rule | C．the rule | D．a rule it |
Mr. Green was chosen ________ of the club.
| A．the chairman | B．chairman | C．a chairman | D．chairmen |
The singer, together with some of her fans, _____a song on the stage.
| A．sing | B．sang | C．is singing | D．are singing |