There are ______ Russian（s) and ______ American（s) on board.A．one, oneB．one, twoC．two, two

There are _______ parts in Great Britain and ________ parts in Britain.A.three; fourB.th

______ for a long time, the ponds are all dried up and a lot of fish are dead.A．There has

According to Geoffrey Leech, there are three kinds of meaning: conceptual,______and themat

There are more and more crimes ______ a lack of rules and regulations.A sinceB because o

More and more people are realizing that there is a _____ between heart disease and t

There ______two books and a bag on the desk.A、hasB、haveC、isD、are