The idea came to me when I () with him.

单项选择题In spoken English of some areas in the US, the r sounds at the end of the words().

A. are dropped
B. drop
C. are being dropped
D. have dropped

单项选择题You ()buy a gift, but you can if you want to.

A. must

B. mustn't
C. have to
D. don't have to

单项选择题The farmers stored up a good()of wheat and a () of beans this year.

A. number; lot
B. deal; number
C. plenty ; lots
D. deal; lots

单项选择题学习档案是以个人的方式经过长期的、有目的、有计划地对自己学习过程和成果的信息、资料累积起来的集聚物，“学习档案袋”是______的一种典型方式。

单项选择题For many years, people () electric cars. However, making them has been more difficult that predicted.

A. had dreamed of
B. have dreamed of
C. dreamed of
D. dream of