问题

It is these poisonous products_____can cause the symptoms of the flu , such as headache and aching muscles .

A:who
B:that
C:how
D:what

正确答案是：

同类题型

.—You ____ have set aside more time to play with our kids.—I wish I ______, but you know how busy I was.

．——-Have you heard today’s weather forecast?——Yes 。Better weather is____________We can expect an outing

He _____and his friends took herto hospital just now.

he failed his last test, but really he’s ________ stupid.

The overcoat is too expensive. Can you sell it cheaper— Sorry, it’s beyond my .