You ______ play with fire. It’s dangerous.

The teacher highly recommended that I___________ more to improve my English.

There is little food in thefridge , ______ ?

83 It is said that Hong Kong will bejoined _____ the mainland _____ a beautiful bridge on the sea in the nearfuture

The old man has run four laps(圈) around the pool, while the younger one was almost after only one lap.[ ]