摘要： The children very quiet,I wonder what they up to. A. were, are being B. are being,are C. are,do D. are being,do
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The children ____ very quiet；I wonder what they ____ up to.
A. were； are being B. are being；are C. are；do D. are being；do
查看习题详情和答案>>The children ____ very quiet；I wonder what they ____ up to.
|
A．were； are being |
B．are being；are |
C．are；do |
D．are being；do |
查看习题详情和答案>>
The children ____ very quiet；I wonder what they ____ up to.
| A．were； are being | B．are being；are | C．are；do | D．are being；do |