--- I was walking along the street and all of a sudden, a car cut in and knocked me down．
--- You can never be ______ in the street．
| A．careful enough | B．much careful | C．very carefully | D．too carefully |
__ of them has got a book.
| A．Every | B．Each | C．All | D．Both |
Wang Jing is sitting __ my right.
| A．in | B．on | C．beside | D．at |
Little Jim sat under the tree, ___ about that maths problem.
| A．to think | B．and thinks | C．thought | D．thinking |
More than 70 percent of the playground in our school __ covered by water now.
| A．are | B．is | C．were | D．be |
Shanghai is __ the east of Nanjing.
| A．in | B．to | C．from | D．om |