A.subway | B.underground | C.train |
A.in; good | B.into; well | C.into; good |
A.in | B.on | C.at |
There are many signs around us. We know a lot about
A.it | B.they | C.them |
A.mean | B.means | C.meaning |
A.things | B.the thing | C.thing |
A.should | B.can | C.can’t |
A.in | B.on | C.to |
A.smoke | B.eat | C.drink |
A.is mean | B.mean | C.means |
A.must | B.can | C.shouldn’t |
A.litter | B.littering | C.read |
A.shout | B.read books | C.talk |