—Hi, why are you here?—I ________ for Susan for 15 minutes.A. have been waiting B. have waiting C. am waitingD am been waiting
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.
The weather in Beijing is different from______ in Suzhou.