选择可以替换句中画线部分的最佳答案。
( )1. Look out ! A car is coming.
A Look carefully B. Have careful C. Be careful D. Look up
( )2. We will have to plant twenty more trees.
A. more than twenty B. another twenty
C. t
he other twenty D. less than twenty
( )3.They had a good time at the park last Sunday.
A. good luck B. enjoyed themselves
C. had a good weekend D. had a rest
( ) 4. Grandma is ill . Let’s take her to the hospital right away .
A. at first B. on time C. from now on D. at once
( )5. Why don’t you come here early ?
A. do you B. not C. you not D. not you