---Why do you look so worried?---I’m expecting a call from my son. He              London for three days.
#52413
A
has been to
B
has been in
C
has gone to
D
has come in
推荐题目
 When he walks _____ my desk, he often knocks my books ______ the desk.
#59405
A
pass; off
B
past; off
C
pass; on
D
past; on
Mr Yu gave some new words to Lucy and asked her to     on the blackboard.
#62363
A
write it down
B
write them down
C
write down it
D
write down them
Could you please _______ the window ?It’s too cold outside.
#54872
A
open
B
not to open
C
don’t open
D
not open