Jane _____ these families of chimps for many years and helped people understand how much they behave like humans.
#101999
A
had studied
B
studied
C
studies
D
has studied
推荐题目
—What have you been busy with these days? —I ______ that the speech contest has been brought forward, so I ______ for it.
#102161
A
was informed; have been preparing
B
have informed; am preparing
C
informed; have prepared
D
was informed; prepared
Could I do some explanations? I to call on you last night, but somebody came to see me just when I was to about leave.
#102287
A
would intend
B
intended
C
had intended
D
was intending
--- What is your strongest memory of the bombing attack?--- If I ______ rightly, we were about to approach the finish line when a big bang struck my ears.
#100856
A
will remember
B
had remembered
C
remember
D
remembered
-Is your father a teacher of English in the No.l Middle School?-No! But he _________ English there for ten years.
#100333
A
has taught
B
has been teaching
C
taught
D
had taught
— You’ve left the light on. — Oh, so I have. _____ and turn it off.
#100030
A
I go
B
I’ve gone
C
I’ll go
D
I’m going