--- Do you know if Tom_______ to Lily’s birthday party last Sunday?--- Sorry, I've no idea.A. is invitedB. was invitedC. invited
________ the weather improves, we’ll have to cancel the outdoor picnic.
Unless
If
Because
When
—Could you tell me ________ pay the bills?
—You can pay your bills through Alipay(支付宝)online.
how much I’ll
how many I’ll
how can I
how I can
Neither Saturday nor Sunday________ OK because I will be quite busy these two days.
are
is
am
be
The Forbidden City (紫禁城), the largest palace in the world, ________ more than 600 years ago.
built
were built
was built up
was building
Students ________ play with fire in the classroom. It’s quite dangerous.
mustn’t
must
couldn’t
could