— Has Tom finished his homework yet?
— I have no idea, he _____ it this morning.
| A．was doing | B．did | C．had done | D．would do |
Once out of the earth’s gravity, the spaceman is ___ by the problem of weightlessness.
| A．affected | B．effected | C．related | D．offered |
I admired my classmate Lisa very much. _____ her prettiness, she was smart and helpful.
| A．Apart from | B．Except for | C．But for | D．In spite of |
The boy is lying on the ground, _________ at the aeroplane in the sky.
| A．looked | B．looking | C．look | D．to look |
Only when I left my parents for Italy____ how much I loved them.
| A．I realized | B．I had realized | C．had I realized | D．did I realize |
Look, the book still ____ where I ____ it the other day.
| A．laid; lied | B．lied; lay | C．lies; laid | D．lies; lay |