It ________ have been her to leave her child alone and do whatever she wanted. She isn't such a person.

(2013·合肥一检)According to the rules and regulations, all payments ________ be made in cash in the shopping center.

Students ________ remain in their seats until all the papers have been collected.

(2013·北京东城二次联考)—________ you interrupt now？Can't you see I'm on the phone?—Sorry，sir，but it's urgent.

 ---I saw Mr. Smith at Xianyang Airport this morning.  ---You ____. He’s still on holiday in Hawaii.

Mountain climbing ______ be really dangerous at times even though it is challenging and exciting in general.

—Real Madrid is sure to win the match !—It’ s hard to say . You know, anything ________ happen even in the last minute.

 —These grapes look really beautiful. —They _______! See the price $3.99 a pound. Very expensive, aren’t they!

 –I have packed your luggage for you need to rise early tomorrow. --Thanks. You ______ that. I am a big girl now and I can manage it, Mum.

The door _____ open, no matter how hard she pushes.

We can hardly believe such a young boy ______ travel around the world all by himself.

My sister met him in the hospital yesterday afternoon, so he _________ your lecture.

The door _______ open, no matter how hard she pushed. 

 If you _______ spit at all. please spit in the bucket provided. 

He is sweating heavily. He _______ weightlifting for a long time.

— Jim is very sick these days. He coughs so badly.— In my opinion, he really ________ listen to the doctor and cut down on smoking.

 Keep up a good state of mind even if you _____ fail plenty of times.

 It was very kind of you to do the washing-up but you _____ it

It’s said that there’re plenty of hotels in that town. There ______ be any difficulty for you to find somewhere to stay today.

 No one ______ be more generous; he has a heart of gold.