The World Health Organization warned that Asian countries __________ attentive to bird flu since Asia ___________ got rid of the disease completely.
A.should keep; has | B.must remain; has not | C.ought to stay; has been | D.shall be; has not been |
Jane didn’t get to the airport on time, ______she missed the plane.
A.but | B.for | C.so | D.Or |
Move the plants to a south-facing window, ________they can absorb daytime heat.
A.that | B.when | C.which | D.Where |
---Do you know what time you’ll be back this evening, Eric?
----I’m not sure. It depends on_______ the interview lasts.
A.when | B.what | C.how long | D.how much |
You will be late for school ________you hurry up.
A.if | B.since | C.when | D.Unless |
A great cheer went up ______the first goal was scored.
A.before | B.when | C.unless | D.Though |