题目列表(包括答案和解析)
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
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 |
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 |
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
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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