[ Grammar ]
We observed the researchers _______ complex experiments in the lab.
A. to conduct
B. to design
C. to initiate

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Grammar › ViewI will study English ……
A. yesterday
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Grammar › View
“Pass me the salad, Tom!” asked Anna.
A. Anna asked Tom to pass her the salad.
B. Anna asked Tom to passed her the salad.
C. Tom asked Anna to pass him the salad
D. Tom asked Anna that passed the salad