Dad ____ TV when it began to rain yesterday．（ ）
A．watchesB．watched
C．is watchingD．was watching
I hear you have a home robot．
Yes，it's amazing．It ______ do all my housework．（ ）
A．mustB．shouldC．couldD．can
What will the phone ______？
The same as you said，eight hundred dollars each．（ ）
A．spendB．costC．payD．afford
Hi，guys．Where were we yesterday？
We learned the differences ______ fact and opinion．（ ）
A．betweenB．amongC．duringD．beyond
They have provided several ways to solve the problem．We can choose _______ to start with．（ ）
A．itB．thatC．oneD．each
Have you seen ______ cartoon film Zootopia？
Of course．It's ______ most interesting film I've ever seen．（ ）
A．a，theB．the，aC．a，aD．the，the