My uncle has taught in this school________ he was twenty years old.
A.after B.for C.until D.since
My home is far from school. That’s _______ I go there by bus.
A.what B.how C.when D.why
—Jack, I haven’t seen your uncle for a long time.
—He Shanghai on business for two weeks.
A.went to B.has gone to C.has been in D.has been to
Practice more, _______ you’ll learn English better.
A.or B.so C.and D.but
A/An ________ can use his drawings to tell about beautiful mountains, the blue sea and many other things.
A.astronaut B.scientist C.artist D.doctor
What a beautiful song! It ___________so sweet.
A.feels B.sounds C.tastes D.smells