:Unit1 Playing Sports 综合能力演练 I. 单项选择。 1.—I’m sorry for _______ I said. —It doesn’t matter. A.how B.which C.what D.when 2.—I’ll play baseball, because it can_______. A.to build me up B.to build up me C. build up me D. build me up 3.—You play the piano too loudly. Would you please play it _______? —I’m sorry. A.clearly B.silent C.quiet D.quietly 4.—Would you mind _______ us in the game? —Not at all. A.joining B.join C.join in D.joining in 5.—You kept me _______ so long. —Sorry. I’ll be ready soon. A.wait B.to wait C.waited D.waiting 6.—Would you please _______ so much noise? —Oh, sorry, I won’t. A. not make B.d