选择填空，把单词补充完整。
( )（1）wa___t(等待) A.i B. d C. e
( )（2）da_ c_(跳舞) A.n ,e B. s , e C. g , c
( )（3）usua_ _ y(经常) A.l ,l B. l ,e C.a, l
( )（4）n_ w(现在) A.o B. e C. a
( )（5）r_n(跑) A. u B. a C. g
The students couldn't help ______ when they heard the joke.
A. to laugh B. laugh C. laughing
Do you know ______ this word?
A. what to spellB. how to spell C. to spell
Be quiet! The babies ________.
A. sleepB. are sleeping C. slept
He asked me _____ I would like a cup of tea.
A. that B. whatC. if
找出下列英文单词所对应的中文意思。
（1）listen to the radio A 植物园
（2）bad cold B 樱花
（3）play chessC 听广播
（4）botanical garden D 重感冒
（5）cherry blossomE 下棋