Li Na ____________ her husband’s significant contribution in her development on the WTA Tour.
| A．thanked | B．acknowledged | C．owed | D．accumulated |
The students _______are hard-working and ready to help should be praised.
| A．who | B．whom | C．which | D．whose |
— What’s the noise outside?
— Some children ________ hide-and-seek in the yard.
| A．were playing | B．are playing |
| C．have played | D．played |
—Than k you for joining in our conversation tonight.
—_____.
| A．It’s my duty | B．It’s all right |
| C．It’s my pleasure | D．With pleasure |
After long a nd hard work, the police at last discovered the ________ of the baby found by the side of a road.
| A．attitude | B．identity |
| C．situation | D．concern |
This is the first time that we _____ a film in the cinema together as a family.
| A．see | B．had seen | C．saw | D．have seen |