A _______ is a landscape or region that receives very little precipitation.

Choose the correct answer in each sentence.

The phone survey overcomes some of the ------ of the mail survey but remains somewhat costly.

Choose the correct answer in each sentence.

If __________   parts are covered by the manufacturer’s warranty, return them immediately to the manufacturer and provide notice of the problem by e-mail.

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

Thanks to artificial intelligence, the phone's voice-recognition system converts the sound into numerous data.

Choose the correct answer in each sentence.

With the help of one of the IT technicians, the missing accounting files have been  ___________.

My mother knows the traditional _____ of the Southwest.

_____ sun and the moon both set in ____ west. 

Choose the correct answer in each sentence.

Free Internet service  ___________  available in the lobby but not in the guest rooms.

China is one of the most     _ populated areas in the world.

Choose the correct answer in each sentence.

Ms. Kelly has been working in the same position for 8  __________  years.

Choose the best answer:

The  ............... language in Malaysia is Bahasa Malaysia.

He declared that he ———————- it even if he saw it with his own eyes. 

Choose the correct answer in each sentence.

MKC’s staff of highly trained chemists and technicians has over 95 years of   _______ experience in the hazardous waste management field.

He’s very ............ about his private life. He’s got no secrets.

Choose the best answer:
Hoa and Laura are talking about their volunteer work.
- Hoa: “Thank you very much for helping the disadvantaged children here.”
- Laura: “ ."

Nothing is destroyed after the serious flood in this area, ............. ?

Peter said he _____ a test the following day. 

We have bought some .................

Choose the sentence that is closest in the meaning to the root one.

That book / very thick / belong / younger sister.

She has the determination that her brother ...................

Children usually begin to go to _____ school at ______ age of six.