---Where do you think ____ he ____ the computer?
---Sorry, I have no idea.
| A．/; bought | B．has; bought |
| C．did; buy | D．had; bought |
After the long journey, the Whites returned home, ___________.
| A．safely but tired | B．safe but tired |
| C．safe and tiring | D．safely and tiring |
Only when I made it to the train station _______ that I had left my ticket at home.
| A．have I realized | B．did I realize | C．had I realized | D．would I realize |
Much to our grief, the victims injured or killed in the terrible earthquake have reached _______ 10,000.
| A．as many as | B．as far as | C．as much as | D．as long as |
He wrote ________ song, which turned out to be rather popular with _______ young.
| A．a; a | B．a; the | C．the; a | D．the; the |
If people ______virtual reality holidays, we ______ on an around-the-world tour．
| A．invent; go | B．invented; had gone |
| C．invent; have gone | D．invented; would go |