________ the pandas in China ________ about 2000 now. We should try our best to protect them.
A.A number of; is B.A number of; are
C.The number of; is D.The number of; are
Shanghai is bigger than ________ in Jiangsu and it is bigger than ________in China.
A.any city; any other city B.any other city; any city
C.any other city; any cities D.any city; any other cities
—Maths is so difficult. I can't learn it well.
—You should believe in yourself. It is not ________ as you think if you spend more time on it.
A.more difficult B.very difficult C.much difficult D.so difficult
A good monitor always helps people ________need and never says a bad word ________others.
A.in; with B.for; about C.in; in D.in; about
None of us felt ________ because the meeting was too long and ________.
A.exciting; bored B.boring; boring C.bored; boring D.excited; boring
He is ________ excellent singer. He has ________ good voice.
A.a; a B.an; a C.a; / D.an; /