单项选择题—Would you like to play basketball with us —Yes, I'd love to. ______ I'm afraid I have no time.
单项选择题— Sorry, I have to ______ now. It's time for class. — OK, I'll call back later.
单项选择题It's impossible for a child to do so much work within a short period of time, ______
单项选择题—What do you think of the concert —I really enjoy it. I didn't expect it was ______ wonderful.
单项选择题—When was the first man with A(H1N1) flu in mainland China known for sure —______ May 11, 2009.
单项选择题One of the boys is ______, all the other boys are ______.
单项选择题The head of the executive branch in New Zealand is______.
单项选择题It is reported that the police will soon ______ the case of two missing children.
单项选择题() Yellow River is the second longest river in our country.
A. / B. The C. An D. A
单项选择题小学英语课堂唱英语歌,应要求______。