I was playing soccer when the rainstorm ______ yesterday afternoon．（ ）
A．comeB．cameC．comes
Making robots is one of ________ activities among students. Each of them has his own robot.
| A． |
more popular |
B． |
the most popular |
C． |
more difficult |
D． |
the most difficult |
Many people have lost their homes because of wars. It’s important for people ________ a peaceful world.
| A． |
have |
B． |
had |
C． |
to have |
D． |
to be having |
________ the weather improves, we’ll have to cancel the outdoor picnic.
| A． |
Unless |
B． |
If |
C． |
Because |
D． |
When |
—Could you tell me ________ pay the bills?
—You can pay your bills through Alipay（支付宝）online.
| A． |
how much I’ll |
B． |
how many I’ll |
C． |
how can I |
D． |
how I can |
Neither Saturday nor Sunday________ OK because I will be quite busy these two days.
| A． |
are |
B． |
is |
C． |
am |
D． |
be |