A: Where are you now?B: We _________ on the Great Wall of China and talking to you.
#38076
A
stand
B
standing
C
are standing
D
are stand
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It’s two and a half weeks since the exchange students __________ Taixing.
#41756
A
arrived
B
reached
C
have been in
D
have arrived in
The life we were used to __________ greatly since 1992.
#41601
A
change
B
has changed
C
changing
D
have changed
 -- ________  your homework yet?-- Not yet. I _______ it.
#38354
A
Have you done; am doing
B
Did you do; am doing
C
Have you done; did
D
Did you do; did
I know a little about Thailand, as I ________ there three years ago.
#40684
A
have been
B
have gone
C
will go
D
went