A、 were not able to help laughter
B、 could not help but laughing
C、 could not help laughing
D、 could not help to laugh
答案:C
A、 were not able to help laughter
B、 could not help but laughing
C、 could not help laughing
D、 could not help to laugh
答案:C
A. at
B. in
C. over
D. to
A. custom
B. habit
C. way
D. style
A. counting
B. count
C. to count
D. of counting
解析:解析:蛋未孵勿先数;不要过早乐观
A. While
B. When
C. Once
D. Since
A.
B. x2
C. 2x
D. 2
解析:解析:
A. That we discussed
B. What we discussed
C. How did we discuss
D. What did we discuss
解析:解析:(be of importance= be important)
解析:解析: