Monarch butterflies in North America travel thousands of kilometres each autumn to spend the winter in warmer places, such as forests in Mexico. Where do many monarch butterflies spend the winter?
A permission slip reads: “Please sign and return this form by Friday if your child may join the trip to the science museum on 12 May.” When must the form be returned?
“The ancient castle stood on a hill overlooking the village.” Which word means the same as “ancient” in this sentence?
“Mobile clinics now travel to farming villages twice a month. Before, people had to travel three hours to the nearest doctor.” What is the main benefit of the mobile clinics?
A patient handout says: “Call the clinic if your temperature rises above 38,5 °C (101,3 °F), if the wound becomes red and swollen, or if you notice any discharge.” Which situation should lead the patient to call?
Some birds, such as Arctic terns, migrate thousands of kilometres every year. Scientists think birds find their way using the sun, the stars and Earth’s magnetic field. Which word best describes the scientists’ explanation?
The author writes: “Since the hospital started a quiet hour from 2 to 3 p.m., patients report sleeping better. However, the survey asked only patients on one ward, during one week.” What does the second sentence do?
“The new treatment is promising,” the researcher said, “but our trial included only 40 patients, all of them under 50. We cannot yet say whether it works for older adults.” What can you infer about the researcher’s view?
Lời giải đầy đủ từng bước: hãy luyện chủ đề này trên examproblems.com.