I _______ the living room by the time Dad comes home. He will be surprised.

She said she had a headache. Otherwise, she ______ in the dance.

Graham was disappointed because he _______ for the bus for an hour.

In developed world, there are hardly _______ jobs left which don’t use computers to carry out many daily tasks.

Everyone thinks that the concert last night was extremely successful, _______?

I only tell my secrets to my _______ friend as she never reveals them to anyone.

Despite playing under strength, our football team, U23 Viet Nam, _______ beat their rivals such as Qatar and Iraq.

Despite a lot of concerns, sending people into space seems certain; we ______ see lunar cities and maybe even new human cultures on other planets.

This investigation is not only one that is continuing and worldwide ______ we expect to continue for quite some time.

For those ______ in adventure and sport, there is a lot to do on Vanuatu’s islands in the South Pacific.

______ humans, dolphins use a system of sounds and body language to communicate, but understanding their conversations is not easy for humans.

When I was small, my parents were often away; my grandmother ______ take care of me.

Businesses will not survive ______ they satisfy their customers.

Project-based learning provides wonderful opportunities for students to develop their ______.

There has been little rain in this area for too long, ______?

This factory produced_______motorbikes in 2008 as in the year 2006.

The song has______been selected for the 2018 World Cup, Russia.

Extinction means a situation ______ a plant, an animal or a way of life stops existing.

Nobody likes his behavior,______?

By the time Brown's daughter graduates,_______retired.

I don't think Peter will reject that job offer, ___________?

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

    The investors bought a deserted warehouse __________ convert it into a shopping mall for the townspeople.

I'm sorry because I've lost the key to the drawer ________ all the important papers are kept.

Let me explain everything to you, _____?

He is tired now. He _____ the gardening for hours.

My brothers are often very ____ to what I say. They are really lovable.

The scientists _____ on this project try to find the solutions to air pollution.

Determining the mineral content of soil samples is an exacting process; ______,experts must perform detail tests to analyze soil specimens.

I’m sorry I haven’t got any money. I’ve______my wallet at home.

He has been waiting for this letter for days, and at_______it has come.

She ______ on her computer for more than two hours when she decided to stop for a rest.

He sent his children to the park so that he could have some______.

No one can predict the future exactly. Things may happen ______.