I ______ go sailing on the lake.

I’msure I will get good grades (成绩) in this exam.—If so, I believe your parentswill ______ the result.

Which of the two computer games did youprefer—Actually I didn’t like ______

There is no reason they should limit how much vitamin you take, ______ they can limit how much water you drink[ ]

I would like to buy the black pen because I ___ thatkind of pen ____ well.