用括号内所给单词的适当形式填空。

小题1:This _________(feel) makes him upset all day and night.

小题2:Mother lets Michael ___________ (not watch) TV all day because the final exam is coming.

小题3:He has a lot of trouble ___________ (work) out the problems.

小题4:I love the opera, Cats. It’s so _________ (fun).

小题5:Mrs. Green seems            (worry) because his son is ill.

关于外因性不均称型胎儿生长受限正确的是（）

A.多属于原发性胎儿生长受限

B.其病因包括基因或染色体异常，病毒感染，接触射线及其他有毒物质

C.胎儿发育不均称，身长、头径与孕龄不相符，体重偏低

D.胎儿一般无缺氧表现

E.胎儿各个器官细胞数量正常，但细胞体积缩小