Change into Indirect speech. 

The teacher said to the boys. "Wait here till I return."

Directions: In question four alternatives are given for the Idiom/Phrase underlined in the sentences. Choose the alternative which best expresses the meaning of the Idiom/Phrase and mark it is the Answer Sheet.

Life is an event of give and take.

निम्नलिखित में से कौन सा गलत है?

ध्वनि तरंगें _________ तरंगें हैं।

In the following passage, some of the words have been left out. First, read the passage over and try to understand what is about. Then fill in the blanks with the help of the alternatives given. Mark your answer in the Answer-sheet.

Have you ever felt that Computer are getting under your skin? Will, you have seen nothing yet. Scientists in the United states are……(11)……computer that are so………(12)……..that they can be seen into the fining of clothes or even…….(13)….in to the human body.
These are…………..(14)…..as sub-dermal computers, and those who….(15)……then will be able to communicate through radio links to other computer arriers. Initially the……….(16)…….for this mindboggling micro-technology is …….(17)…..to be military one.
Already the US army has developed a Computer of the…..(18)……of a pill, which can be ……(19)….and allow doctors to…….(20)….the health of soldiers on training missions.
(Mark your answer 16)

इनमे से सबसे बड़ा कौन है

$$^{3}\sqrt{9},\sqrt{3},\ ^{4}\sqrt{16},\ ^{6}\sqrt{180}$$

दो पहियों की त्रिज्याओं का अनुपात 3 : 4 है तो उनकी परिधियों का अनुपात होगा।