--I would why he ____so strangely these days. --Recent pressure at study may account for his behavior.
#103781
A
was acting
B
is acting
C
acted
D
acts
推荐题目
—What’s the price of petrol these days?—It ________ frequently since last year.
#99445
A
is arisen
B
increased
C
has been rising
D
has raised
-It’s many years since I saw you last, I __________ you at all.-I wouldn’t have, either, if someone __________ you by the name.
#103266
A
didn’t recognize; hadn’t called
B
didn’t recognize; didn’t call
C
haven’t recognized; didn’t call
D
can’t recognize; had called
The little boy is dirty from head to foot because he______in the mud all morning.
#104172
A
has played  
B
is playing
C
has been playing
D
was playing