1) he.....to submit assignments to the teacher a) has b) had c) have to 2) they ...... attend the flag ceremony on Monday a) must b) may c) should 3) i ..... go to my room and sleep a) wouldn't b) would c) won't 4) you ..... go to doctor to see your healthy a) must b) shouldn't c) should 5) sit down, please ! a) giving intrucion b) inviting c) asking permission

exercise !

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