Gunpowder,__________ we all know, was invented in ancient China.
A.it |
B.which |
C.as |
D.that |
.
We are invited to a party ______ in our club next Friday.
A.to be held | B.held | C.being held | D.holding |
.
Let's go to ______ cinema — that'll take your mind off the problem for ______ while.
A.the; the | B.the; a | C.a; the | D.a; a |
.
--John and I will celebrate our fortieth wedding anniversary next month.
--Oh, ______!
A.cheer up | B.well done | C.go ahead | D.congratulations |
.
______ his homework, he went on to preview the next lesson.
A.Doing | B.To do | C.done | D.Having done |
.
In 1989 an international law was passed to stop people _____ waste into the sea.
A.to put | B.putting | C.not to put | D.not putting |