Luckily, we’d brought a road map, _________ we would have lost our way.
It sounds like something is wrong with the car’s engine. _____ , we’d better take it to the garage immediately.
Only after they had discussed the matter for several hours ______ a decision.
The earliest English ___ was written in a kind of English that is now difficult ___.
At the foot of the mountains ____ a tower built in the Ming dynasty.
--- Tomorrow we’ll go hiking in the mountain to experience nature.---- ___ it rains heavily when we are still halfway?