If ______ in wet sand, the vegetables can ______ fresh for a long time.
-----Have you been to New Zealand? -----No, I’d like to, _____.
He hurried to the booking office only______ that all the tickets had been sold out.
They urged that the library_______ open during the vacation.
The church clock began to _______ twelve.
-----Is this the first time you______ Chengdu?-----No. But the first time I______ here, the city wasn’t so beautiful