I had a little trouble English grammar.

.Lingling got up early_______she could catch the early bus.

– Samsung Electronics, the world’s largest smartphone maker, said Thursday that it has sold more than 10 million units of Galaxy S4, in ______ a month since its debut .

He’s got himself into a dangerous situationhe is likely to beaccused of meeting someone.

e class time, our teacher has ______students do half of the exercises in class and complete the other halffor our homework