Question

【題目】There were ______ people at the concert. It's crowded.
A.thousands
B.thousand
C.many thousands
D.thousands of

Answer 1

【答案】D
【解析】基數詞hundred，thousand, million前面有數詞時為實數意義，詞尾不能加s；前面無數詞時，詞尾可以加s，與of構成短語，表示虛數意義，意為“數以……計的”。