1.  I am interested in watching TV. 

⇒ enjoy + V_ing = interested in + V_ing

2. Duong is the best in the class.

⇒ so sánh hơn nhất với tính từ: the + adj_est + ..

3. This is the first time I have eaten this kind of food.

⇒ S + have/has + not + V_ed/3 = This is the first time + S + have/has +V_ed/3 ...

4.  I'd rather you didn't make any noise I'm very tired 

⇒ S + would rather (‘d rather) + V nguyên thể + ..

5. What about going swimming

⇒ What about + V_ing + ...

$\text{1.I am interested in watching TV}$

$\text{$\Rightarrow$S+tobe+interested/interesting in+V-ing}$

$\text{2.Duong is the best else in the class }$

$\text{$\Rightarrow$S+tobe+the adj-est+O}$

$\text{3.This is the first time I have eaten this kind of food}$

$\text{$\Rightarrow$This is the first time+S+have/has+Vp2+O}$

$\text{I'd rather you didn't make any noise I'm very tired}$

$\text{ $\Rightarrow$S+would rather+Vn.t+O}$

$\text{5. What about going swimming? }$

$\text{$\Rightarrow$What about+V-ing+O}$