When the teacher ______ how to do the experiment, the bell rang.
#37863
A
explains
B
will explain
C
was explaining
D
is explaining
推荐题目
--- Where is your mother?--- She has ______ to Sichuan on business. She has ______ there four times recently.
#41744
A
gone, gone
B
been, been
C
gone, been
D
been, gone
Our physics teacher told us light __________ faster than sound last term.
#39709
A
travels
B
travel
C
travelled
D
travelling
Her_______ eyes make her _______ really kind.
#42636
A
smiling; look
B
smiling; looks
C
smile; look
D
smile; looks
—Where is my little dog?—It the back of the house．
#42017
A
has gone to
B
had gone to
C
has been to
D
had been to