21. Can you turn off ________television, please ?
A. a B. an C. the D. θ
22. I have got __________ uncle. He lives in Hanoi.
A. the B. a C. an D. θ
23. We sat side by side looking at _____ night sky and thinking about our future.
A. a B. the C. θ D. a
24. I want ______apple from that basket.
A. a B. an C. the D. θ
25: Colin told a joke about ______ postman, but it wasn't very funny.
A. a B. an C. the D. Ø (no article)
26: After a busy day, I went to bed and had ____ most beautiful dream ever.
A. a B. an C. the D. Ø (no article)
27: A figure carrying ______ open umbrella walked slowly through the rain.
A. a B. an C. the D. Ø (no article)
28: In ___ most countries, it is compulsory for children to receive primary education.
A. a B. an C. the D. Ø (no article)
29:Human beings are __ greatest threat to the survival of endangered species.
A. a B. an C. the D. Ø (no article)
30:Do you know exactly ______ number of Siberian tigers in China?
A. a B. an C. the D. Ø (no article)
31: Many people are still in __ habit of writing silly things in _ public places.
A. the – the B. the - x C. x - the D. x - x
32: At first she was trained to be __ scriptwriter, but later she worked as a secretary.
A. a B. an C. the D. Ø (no article)
33:My parents hope to travel around ______ world next summer.
A. a B. an C. the D. Ø (no article)
34: Columbus discovered America in ________ 15th century.
A. on B. a C.the D. an
35: The Soviet Union was ___ first country to send a man into space.
A. a B. an C. the D. Ø (no article)
36: ______ book that I borrowed yesterday is very interesting.
A. A B. An C. The D. Ø (no article)