【正文】
a 9. On _________ Sundays , I often help mum do house work. A. / B. a C. an D. the 10. We often have _________ supper at 7. A. / B. a C. an D. the A A B A A 。 the C. A 。 an (2020年甘肅卷 ) 2.– where is _____________maths teacher? He’s talking with Sam’s father. A. a B. an C. the D. / ( 2020年福州卷 ) 3. Mr Black didn’t go to work yesterday because he was ill in ____bed. A. a B. an C. the D. 不填( 2020年廣東卷 4. We’ll build 800metre—long bridge. A. the B. a C. an D. / 5. He left for Qingdao by . A. a ship B. the ship C. ship D. an