It was when I arrived home _____ I realized I had left my bag in the library.
| A．what | B．because | C．that | D．until |
To our relief, Xiaodan as well as the other children who ______ no parents ______ good care of in the welfare institute.
| A．have; is being taken | B．has; are being taken |
| C．has; is being taken | D．have; are being taken |
Whitney Houston was confirmed dead in her LA hotel room, _____ a tragic(悲剧的) end to the world’s most popular singer.
| A．marked | B．to mark | C．having marked | D．marking |
—He was downloading reading materials from a website when the computer crashed.
—_______ that he looked a little upset.
| A．No doubt | B．No use | C．No wonder | D．No problem |
I failed in the spoken examination last term and only then _______ the importance of practicing speaking English.
| A．I had realized | B．had I realized | C．I did realize | D．did I realize |
It is reported that ________ 8,000 torchbearers will take part in the London Olympic Torch Relay.
| A．merely | B．altogether | C．apparently | D．together |