( )(7)I’ll go and join .A. them B. they C. me
—Happy birthday!—.A. Excuse me B. No,I'm not happy C. Thank you
—I come in?—Come in,please.A. Do B. Am C. May
Look atsun. It's big and red.A. a B. the C. /
—pens do you have?—One.A. How B. How much C. How many
—How do we go to the park?—Let's go therebus.A. on B. in C. by