﹣ you give me a hand？ I can't move the box by myself．
﹣No problem．（ ）
A．CouldB．ShouldC．MustD．Need
There is so much noise in the next room．I wonder__________________．（ ）
A．what are they doingB．what were they doing
C．what they are doingD．what they were doing
Smile to the world， ________the world will smile back to you．（ ）
A．andB．orC．butD．if
The window broke into pieces shortly after the plane _______．（ ）
A．got offB．took upC．got upD．took off
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 can hardly eat _________． I am not feeling well today．（ ）
A．nothingB．anythingC．everythingD．something