Some of my friends are interested in science,but none of them can tell_____.
A.when UFOs wi
ll appear next time.
B.why do horses know the way.
C.where was this kind of plant found.
D.how do elephants communicate.
—I’m worried about the coming test.
—You should work hard for it,_____you’ll have to take it again.
A.and B.or C.but D.however
—Have you got everything_____you need to take for the trip?
—Yes.I have got everying read.
A.who B.where C.that D.
when
Rober will start a driverless taxi service,so don’t feel surprised when you see a taxi coming_____a driver.
A.by B.of C.without D.with
—Could you help me with my English now?
—Yes,I_____.
A.can B.could C.must D.should
The telephone_____talking to prople far away.
A.used buy B.is used for C.is used to D.used for
