$\text{5.}$ He couldn't come , so he had to work . 

-> S+ clause , so + S+ clause 

-> so : nêu kết quả của 1 sự việc xảy ra trước đó 

$\text{6.}$ Because of was sick , Nga didn't go to school .  

-> Because of + Noun/pronoun/Noun phrase , S+ clause 

$\text{7.}$ Because of noisy , I can't study . 

-> Because of + Noun/pronoun/Noun phrase , S+ clause 

$\text{8.}$ I wish I could go to the cinema with you . 

-> can => could 

-> S+ wish(es) + (that) + S+ could ( do can chuyển sang ) + V-inf 

$\text{9.}$ I wish I had known her phone number . 

-> Câu ước ở quá khứ

-> S+wish(es) + (that) + S+ had + Vpp 

$\text{10.}$ My sister wishes she could join the trip . 

-> can => could 

-> S+ wish(es) + (that) + S+ could ( do can chuyển sang ) + V-inf 

$\text{#Chae}$