--Is it _____ pen? --Yes. It' s ______ orange pen. A a; a B. an; an C. a; an D. an; a
During lunchtime, we always have fun_____ each other.
My home is near the school. So I can walk to school ______ by bus.
----______is your new teacher like? -----Friendly and polite.
What______ honest boy! And he is______ best student of all.
This maths problem is_______ easier but______ interesting than that one.