It is uncertain____side effect the medicine will bring about，although about two thousand patients have taken it.
#67381
A
that
B
what
C
how
D
whether
推荐题目
The companies are working together to create _________ they hope will be the best means of transport in the 21st century.
#72447
A
which
B
that
C
what
D
who
—Do you often cook at home, Lucy? —No. It is my husband does most of the housework.
#69719
A
that
B
whom
C
what
D
which
．____ tomorrow, I will pay a visit to my grandparents．
#69066
A
However the weather is like
B
However is the weather like
C
Whatever the weather is like
D
Whatever is the weather like
I am waiting for my friend. , I will go swimming alone.
#41034
A
If he doesn’t come
B
If he won’t come
C
If he hasn’t come
D
If he isn’t coming
This photo of mine was taken__________ stood the famous high tower.
#73371
A
which
B
in which
C
where
D
there