My sister can play______violin very well.
– Hi, Sam. A nice day, isn’t it? – Yes. ________ go to the park to relax ourselves?
She always watches her son ________ the road every morning, or she will feel worried.
Finally, people found computers ________.
They still can’t decide ________ with our difficulties in learning math.
Everybody tells us we can’t pass the exam ________ we study hard.