He glances briefly towards her but there is no sign of ________. After all, it’s 15 years since they last met.

At the meeting they discussed three different ______ to the study of maths.

She had a _____C_in which she saw her boyfriend coming with a bunch of red roses.

Every weekend my younger brother will go to help the old man far away my house,for which he often received some            from the old man,such as a pencil and some sugar.

Whether by accident or _______, he arrived too late to help us.