——Could I speak to Mr Brown? —— ______ , I'1l go and see if he is in.
That was really a splendid evening. It's years ______I enjoyed myself so much.
I hope there are enough glasses for each guest to have____ .
A sheep ____on this kind of special grass which usually grows much faster than ____on ordinary.
Forty percent of the students in our class are boys, ____are girls.
They were all very tired, but ___of them would stop to take a rest.