They don’t seem __________who ________for help.
| A．know , to talk | B．know, to talk to | C．to know, to talk | D．to know, to talk to |
Wearing white can help people _______when they feel stressed.
| A．fall down | B．calm down | C．look down | D．come down |
David didn’t give up ______ he had failed in the experiment four times．
| A．if | B．while | C．though | D．since |
—Look! That teacher is explaining something to her students again and again!
—_______teacher she is!
| A．How patient | B．What patient | C．How a patient | D．What a patient |
Lucy liked all the dresses there, but she took the ______one to save as much money as
possible for Project Hope.
| A．cheaper | B．more expensive | C．cheapest | D．most expensive |
Mandeep can go to school now. UNICEF has paid for her ______．
| A．education | B．vacation | C．competition | D．invention |