If you have any trouble________the work within the time,please tell me. [ ]

elen saw her tutor nod ______ to her,she calmed down and went on with her performance

is your dream, Bob — I wantto ______ a food bank to help hungry people.

I don’t mind picking up your things from the store. _______, the walk will do me good.

What do you think of the meeting held yesterday evening?—It was a tiring one,I kept falling asleep.