I shall never forget the day _________Shen Zhou V was launched,_________has a great effect on my life.

I know _________ I promised to take you todinner, but I won’t finish working until ten o’clock.

Though they don’t live in the same city now, he manages to be informed ________ how Tony is getting along.[ ]

th, _____ of the _____ speech,started to read a novel.

Once out of the earth’s gravity, the astronaut is by the problem of weightlessness.