Grammar - động từ khuyết thiếu: nên, phải

Put the correct answer into the box. You ____eat plenty of fruit or vegetables every day in order to keep healthy.

Put the correct answer into the box. => You___do homework before you go out with your friends.

Put the correct answer into the box. I___submit my homework before 12 o'clock because the deadline is 12 o'clock.

Put the correct answer into the box. I___stay at home to take care of my children

Put the correct answer into the box. She___go out late at night because of danger.

Choose the best answer.Your grandparents live far from you, so you  _______ talk to them on the phone regularly.

Choose the best answer.You _____ stay up late at night, which is not good for your health.

Choose the best answer.I can watch TV and play computer games on Sunday because I _____ go to school that day.

Choose the best answer.I ______ stay overnight at my friend’s house. My parents are very strict about this.

Choose the best answer.You ______ stare at the computer screen for too long. It is really bad for your eyesight.

Choose the best answer.My friend says: "You ____ drink champagne. You can have a coke or fruit juice instead.

Choose the best answer.You_______ drink if you're going to drive afterwards.

Choose the best answer.She_______ speak English well because her current job needs it.

Choose the best answer.I ______ go home now to finish my homework.

Choose the best answer.You ______  pick up Tom at the airport because Judy will pick him up.

Choose the best answer.She_____ stay at home to look after her children because there is no one to help her.

Choose the best answer.You _____ become more responsible by sharing the housework with other people in our family.

Choose the best answer.My grandparents live in the suburbs, so whenever we visit them, we ______ take a bus.

Choose the best answer.We _____ buy souvenirs for Sally. She doesn't like them.

Choose the best answer.If you are a member of the club, you ______ pay to use these facilities because they are included in the membership fee.