----Why are you late ?
----sorry, the bus I took ______ the mud for half an hour, so I had to walk here.
| A．had stuck in | B．has stuck in | C．was stuck in | D．has been stuck in |
________twice, the postman refused to deliver our letters ______we chained our dog.
| A．Being bitten …unless | B．Bitten…unless |
| C．Having bitten…if | D．Being bitten…once |
I always ________you with your brother, for you look so______.
| A．mistake…alike | B．confuse … alike |
| C．puzzle… like | D．misunderstand…likely |
John ________the man _______ be set free.
| A．defended…referred | B．demanded… referred to |
| C．argued …referring to | D．reacted … referring |
________, I think, and all the problems could be settled.
| A．If you make more efforts | B．Making more efforts |
| C．A bit more effort | D．To make more efforts |
-Why can’t I smoke here?
--At no time__________ in the dormitory.
| A．is smoking permitted | B．smoking is permitted |
| C．smoking is allowed | D．does smoking permit |