提出泛性论与潜意识理论的心理学家是（）。
A.皮亚杰
B.艾瑞克森
C.斯金纳
D.弗洛伊德
参考答案：D
– Shall we go to see our teacher tomorrow morning?
– I’d like to, but I ____________ a test between 8 a.m. and 10 a.m. tomorrow.
A．have been taking
B．will be taking
C．am about to take
D．took
