语法词汇练习 语法大全 语法详解 英语听力 
John does important research _______ the best ways to help the old.
#48571
A
finds
B
finds
C
found
D
to find out
下一题
推荐题目
___________for his good skill, this doctor has a lot of visitors calling for help all the time.
#48486
A
Knowing
B
To know
C
Known
D
To have known
The teacher is doing a survey about _____ Japanese．
#49087
A
1earn
B
to learn
C
1earning
D
learnt
 The children enjoyed_______ very much last night.
#49029
A
they
B
them
C
themselves
D
theirs
 Let’s go to Beijing ______ the Great Wall.
#50550
A
to look
B
watches
C
to visit
D
visits
Funny jokes can make us ________when we are sad..
#49037
A
laughing
B
laugh
C
laughed
D
laughs