it is a __practice to bring a present to the hostess when one is invited to dinner.A normal B ordinary C usual D common选哪个?理由?

it is a __practice to bring a present to the hostess when one is invited to dinner.A normal B ordinary C usual D common选哪个?理由? common practiceIn America, poeple should make an appointment before seeing a doctor.This is a common A__sense B. __practice.应填哪个词 ? (is.it)this a wastebasket?no.it(is.isn't ) It is a fine day,isn't( 改错;Today it is a great weather,isn't it? It is a nice T-shirt.It is too for you.It is too ( )for you. Is this a pan?____,it isn 't.Is this a pencil?_____,it is. It seldom snows in Kuming_________?A:does itB:doesn't itC:is it is it D:isn't it It is impossible,____?a.is it b.isn't it C.will you D.won't it It isn't a hot day,is it?yes,it is. it is a pen ,isn't it ? ____ ,it is pen is't it a lovely weather为什么要用a [It's a nice day,isn't it?Yes,it is.]It's a nice day,isn't it?Yes,it is.这是个什么样的句型?意思是什么? Isn't it cute?______l like it.A.Isn't it cute?______l like it.A.No,it isn't B.No,it is. Isn't the food delicious ---------- i like it A No,it is B Yes,it is't C No,it isn't D Yes ,it I don't think it is useful for me to finish the task ----?A can it B is it C can't it D isn't it 为什么 It won't rain tomorrow,——?A、will it B、is it C、isn't it D、won't itA、will it B、is it C、isn't it D、won't it A:It's an animal.B:Is it big?A:Yes,it's very ------.B:Is it a horse?A:No,------.B:Is it atigher?A:No,it isn't.B:Is it an elephant?A:Yes,it is.