—When did you come back last night?
—It was not until 11 o'clock ________ the party ended.
| A．that | B．when |
| C．where | D．how |
Nowadays, _____ growing number of Chinese students are going abroad to seek______ better future.
| A．The, a | B．a, the | C．a, a | D．the, the |
If the government takes measures to enrich senior citizens’ social and spiritual life, it ____ help develop a truly harmonious society.
| A．Can | B．must | C．shall | D．should |
——where did President Xi Jinping have steamed dumplings?
_____It was at the Qing Feng Steamed Dumpling Shop _____ he lined up with other customers.
| A．That | B．in which | C．where | D．when |
The research also raises the question ________ children from low-income, less educated families need earlier aid.
| A．what | B．that | C．when | D．whether |
Most volunteers are from universities, _________ it is not uncommon to see middle and primary school students too.
| A．though | B．however | C．since | D．even if |