Feeling tired, Ba went to bed _________ usual last night.

 A.

late than                    

 B.

less early than      

 C.

more early than    

 D.

earlier than

My little sister doesn’t _________ to school on Sundays.

 A.

has go

 B.

have to goes          

 C.

have to go

 D.

has to go   

My family has a special custom for Vietnamese Women’s day on every October 20th.On this day, every single family member always tries to do something nice for my Mom. Dad (16) _______ me that we ( 17)_______ show our appreciation for her because she took care of us very day. (18)__________ I was young, I would make my mother a card and write about how thankful I was. Now on October 20th, I cook a special dinner for her. My dad usually (19)._________work early and goes to the grocery store to buy ingredients. We will then cook the food (20)._________no help from my mom. She also receives gifts and flowers from my dad. Afterwards, my mother and I will do the dishes .

Ha can speak English fastly  than she could last term.

 A.

could

 B.

than

 C.

fastly

 D.

speak

Các phương trình phải có nghiệm như thế nào thì tương đương với phương trình x2 + 1 = 0.