`1.` hevier / lighter

`2.` quieter / noisier 

`3.` slower / faster

`4.` longer / shorter

`-` So sánh hơn : 

Tính từ ngắn :S1 + V+-adj + er + than + S2 

Tính từ dài : S1 + V+ more + adj+ than + S2 

Choose and write the comparatives to make the sentences true.

1. A bike is hevier than a car. A car is lighter than a bike. (heavy / light)

2. A truck is quieter than a horse. A horse is noisier than a truck. (quiet / noisy)

3. A boat is slower than an airplane.An airplane is faster than a boat. (slow/fast)

4. A train is longer than a wagon. A wagon is shorter than a train. (long/short)

Cấu trúc :

Tính từ ngắn :S1 + adj + er + than + S2 

Tính từ dài :   S1 + more + adj+ than + S2