We drove our car to go _________ the tunnel.
—It smells terrible. What has happened here?—Look, there is a chemical factory_____ much waste gas.A. pour B. pouring C. poured
In our class _____ of the students _____ girls.A. two fifths; are B. second fifth; are C. two fifths; is
—Where are Maria and Kangkang?—They _____ England.A. had been in B. have gone to C. have been to
—I’ve_____the bike_____a year.—Is it still new?A. had,for B. bought,for C. had,since
—He has many books on science .—_____.A. So I have B. So I do C. So do I