David doesn’t give up _______ he has failed in the experiment four times.
| A．if | B．while | C．though | D．since |
—________ Andy like koalas? —Yes, he ________．
A.Does; like B.Does; does C.Do; do
The boy likes dogs ________ they’re very loyal(忠诚).
A.because B.so C.and
Let's ________ the pandas first.
A.look B.see C.watch
Lily is a(n) ____ girl. She is good at many things.
A.beautiful B.lazy C.smart
________ only live in China.
A.Lions B.Pandas C.Tigers