1 . — Tom is always careless with his school work. Could you help him?
— No problem! I think he ________ to think twice before starting.

A．should be told

B．shouldn’t be told

C．should tell

D．shouldn’t tell

2 . while引导的让步状语从句
尽管我承认这个问题很难，但是我并不认为无法解决。(汉译英)

3 . —May I borrow this book.
—Of course. This book_________for two weeks.

A．can keep

B．can be kept

C．can borrow

D．can be borrowed

4 . Most teachers believe that students ________ to experiment with new ideas.

A．must encourage

B．should be encouraged

C．can encourage

D．might have encouraged

5 . No child under 12 is allowed to go to the lake alone; any walk close to the lake ________by a parent.

A．must be accompanied	B．must accompany
C．can be accompanied	D．should accompany