Choose a, b, c, or d that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
The keys _______ somewhere.
must have been leaving must have left must be leaving must have been leftMôn học
Chủ đề / Chương
Bài học
Chủ đề
Choose a, b, c, or d that best completes each unfinished sentence, substitutes the underlined part, or has a close meaning to the original one.
The keys _______ somewhere.
must have been leaving must have left must be leaving must have been left