Mr Black ________ Shanghai in a few days. Do you know when the earliest plane________on Sunday?
| A．leaves; takes of | B．is leaving; take off |
| C．is leaving; takes off | D．leaves; is taking off |
He mentioned in the letter that he ______ join us once he ______ our invitation.
| A．would come; received | B．had come; received |
| C．was coming; had received | D．came; received |
When I was young, my father taught me that the earth ______ around the sun.
| A．moved | B．had moved | C．was moving | D．moves |
Let Harry play with your toys ______, Clare. You must learn to share.
| A．at last | B．in secret | C．after all | D．as well |
Steel and iron can be used ______ bridges as well as machines.
| A．to make | B．to making | C．make | D．making |
Children are always ______, and usually think differently from adults.
| A．satisfied | B．social | C．untrue | D．creative |