Choose the best option to complete the sentences: Ask me again tomorrow. We'll have to give it some _______.

We decided ________ on a ecotourism tour this summer.

Depending on many factors, including climate, mineral content of the soil, and the permanency of surface water, wetlands may be mossy, grassy, or covering with shrubs or trees.

Lunar eclipses happen only if the Moon is full, but they do not occur at an every full Moon.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

It is such an important matter__________ I can’t decide anything about it myself.

Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions.

He has to ______ and work harder or he’ll fail the exam.

Choose one word or phrase marked A, B, C, or D that best complete the preceding sentence:

The safety committee's report recommended that all medicines should be kept out of the_________ of children.

Being a nurse involves being cheerful, working unsocial hours, and come home with me smelling of disinfectant

 Lan is interested _________ physics, the subject which I don’t like.

Choose the best answer from the four options given (marked A, B, C, or D) to complete each sentence. 

I’m learning English _________ I want to get a good job after school.

When I was a secretary, the boss often made me to stay in the office in the evenings.

Chemical engineering is based on the principles of physics, chemists, and mathematics

Gold, silver, and copper coins are often alloyed whit harder metals to make them hard as enough to withstand wear.

After driving a car for ten miles, John suddenly realized that he has been driving in the wrong direction

Choose the best option to complete the sentences:  _______ I get, _______ I am.

Since infection can cause both fever as well as pain, it is a good idea to check a patient’s temperature.

Few people realize that the musician of the national anthem of the United States originally belonged to the British drinking song

Sawfish are shark-like fish have “saws” of cartilage set with two rows of teeth on their snouts

Children’s games, which are amusements involve more than one individual, appear to be culturally universal.

Before we returned from swimming in the river near the camp, someone had stole our clothes, and had to walk back with our towels around us.

Chia động từ trong ngoặc cho phù hợp để hoàn thành các câu sau.

If he came here today, we (feel) _______________ happier.