The elderly mother sits in the armchair, at the family picture on the wall quietly.
| A．staring | B．being stared | C．stared | D．to stare |
Thepupilshere_____allkindsofexerciseseverydayinthepastfewweeks.
| A．keptbusydoing | B．keepondoing |
| C．havekeptbusydoing | D．havebeenkeptbusydoing |
He______andwasmadetorepeatit.
| A．didn'tunderstand | B．didn'tbeunderstood |
| C．wasn'tunderstand | D．wasn'tunderstood |
Thethief______whenhewasstealingawalletfromawoman.
| A．happenedtonotice | B．wastakenplacetonotice |
| C．washappenedtobenoticed | D．happenedtobenoticed |
He_____inashowerlastnightandgotwetthrough.
| A．caught | B．wascaught | C．hadcaught | D．caughtup |
Theteachertoldthestudentsthatthey______tobeusefulmentothecountry.
| A．wereallexpected | B．wereallexpecting |
| C．allwereexpected | D．allexpected |