______ is known to all is that the old scientist, for ______ life was hard in the past, still works very hard in his eighties.
| A．As; whom | B．What; whom | C．It; whom | D．As; whose |
It is really hard to find a nice place in this city we can have a picnic.
| A．where | B．that | C．which | D．when |
A person ______ e-mail account is full won’t be able to send or receive any e-mails.
| A．who | B．whom | C．whose | D．whoever |
I have reached a point in my life I am supposed to make decisions of my own.
| A．which | B．where | C．how | D．why |
I travel to the Binhai New Area by light railway every day, _____ do many businessmen who live in downtown Tianjin.
| A．as | B．which | C．when | D．though |
She’ll never forget her stay there ________ she found her son who had gone missing two years before.
| A．that | B．which | C．where | D．when |