—Good morning. Room Reservations. May I help you, sir?
—Yes, I’d like to book a room.
— Which date would that be?
| A．Thank you, sir. | B．That’s all right, sir. |
| C．You are welcome, sir. | D．No trouble,sir. |
The students _____ are hard-working and ready to help others 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 |
I couldn’t help feeling greatI put on the parachute and was pulled off the beach.
| A．even though | B．whether | C．while | D．the moment |
We are deeply impressed by the goal from the conferencethe average income will double by the year 2020.
| A．that | B．which | C．what | D．whose |
Can you be honest aboutit would take to defend yourself against a gun attack?
| A．whether | B．how | C．who | D．what |