Experts think thatrecently discovered painti-考呗网题库移动版

单选题 Experts think thatrecently discovered painting may bePicasso.

A． the; 不填；
B． a; the
C． a; 不填
D． the; a

参考答案D

解析:【答案】D。解析：根据句意可知，第一空为“最近发现的画”，表特指，应用定冠词the；而第二空表示“一幅毕加索的画”．应用a。故选D。

单选题 Bats are surprisingly long-lived creatures, somea life span of around 20 years.

A． having
B． had
C． Have
D． to have

单选题 I'm tired out. Iall afternoon and I don't seem to have finished anything.

A． shopped
B． have shopped
C． had shopped
D． have been shopping

单选题 Let's learn to use the problem we are facinga stepping-stone to future success.

A． to
B． for
C． as
D． by