问题
选择题
—I really appreciate______ time to relax．
—I don’t doubt ______ able to do so．
A．to have;you to be
B．having;that you being
C．to have;you are
D．having;that you are
答案
答案：D
考查非谓语动词。句中appreciate结构为appreciate doing sth. I don’t doubt后接从句，故用you are able to do so，选D。