I have old pen and my brother has________new one.A.a, an B.an, a C.a, a
—1 wore sports shoes to the party by mistake yesterday evening.—Oh, dear, you must be very ______ at the party!
—1 am stressed out about the coming exam, Mom.—Be confident and you will do ______ you set in your mind.
—It will snow hard tomorrow and I will give you a ride to school.—What a great ______ !
Some people are afraid that ______ air pollution may cause changes in weather around the world.
---- Hi , do you know if Tom ________ to my party next week ?----- I think he will come if he ________ free.