They carried most of their ______ on their backs.

[    ]

A. equipment   B. equipments   C. equip   D. equips

______ radio waves can be used to send telephone signals over long distances interests us very much.

[    ]

A. What   B. Which   C. Whose   D. Why

I was about to swim in the river ________ the guide shouted at me.

[　　]

He failed in the exam  　　　　 his carelessness.

[　　]

I soon found that the work I was doing had already been done by someone else. __________, I was wasting my time.

[    ]

A. In other words　　  B. In another word

C. In the other word   D. At other words

________ they will come hasn't been made public.

[    ]

A. When   B. Which   C. What   D. If

Louis Braille fell and the point of the tool entered his eyes and later he ________ blind.

[　　]

He is hurt badly and we must send _______ a doctor at once.

[    ]

A. to   B. for   C. off   D. on

I couldn't look _______ the spelling of the word, as I hadn't a dictionary at hand.

[    ]

A. about   B. after   C. over   D. up

I ________ Jack to ring up to see if Mary was there.

[　　]