(is.it)this a wastebasket?no.it(is.isn't )

The final exam is common.Our teather tell us _ time.A.not to wasteB.don't wasteC.not wasteD.doesn't waste this is a m____,it is yellow This is a watch.Is it (you)? (is.it)this a wastebasket?no.it(is.isn't ) it this a doctor?is this a nurse?选择疑问 I must - - - - - - - this:it is a secret this is a house.it has [ ]windows. This is a (c )game.Ilike it --- () is this?--It's a pencil This is a gift.colour it pink. This is a book.(It's,Its) is this a pen?No it i(). Is this a pan?____,it isn 't.Is this a pencil?_____,it is. What is this?是用this isF还是this is a F还是it is F _____ a ruler ? yes,____. A.Is this, it is B.Is that,it‘s C.this is, it's Is this a c（）?No,it is a watch. 疑问句is it abook.改为this it a book. is this your book?yes,() A.this is B.it isis this your book?yes,()A.this is B.it is C.it isn't