When will you give the novel back to me？
Sorry， I ______ it． How about Friday？（ ）
A．didn't finishB．won't finish
C．haven't finishedD．don't finish
I ______ abroad for several years， but I have never regretted my final decision to move back to my motherland．（ ）
A．am livingB．livedC．have lived
So sorry， I took your school T﹣shirt by mistake． But where is _______？
Don't worry． Let me help you find it．（ ）
A．yoursB．hisC．mine
I can't find Sarah． Where is she？
She ______ for tomorrow's Xingcheng Cup speaking competition at home．（ ）
A．preparesB．will prepare
C．is preparing
Yesterday our headmaster made a speech ______ environmental protection， and we learned something about recycling of waste．（ ）
A．onB．atC．to
Keep trying， ______ you might surprisingly find hidden abilities within you．（ ）
A．butB．andC．or