I could look after _____when I was six.
——May I take the book out of the reading room?—— No, you can’t. You ________ read it here. It’s the rule.A. must B. may C. need
—— Did you notice the headmaster just now?—— No, I of something else.A. thought B. was thinking C. have thought
当你在野外发生意外,急需援救时,你应该打出什么信号?A.SOS B. UFO C.WTO
下列哪组字母发音音素相同?A. FH B.GJ C. NX
下列哪个既是字母又是单词?A. C B. I C. U