Anh ấy [chụp ảnh/đang chụp ảnh].

The manuscript describes an algorithm for calculating temporal, latitudinal, vertical and wavelength dependent distribution of sulfate aerosols for the use ... • Write sentences using a variety of structures. • Write an 8-10 sentence ... Present continuous vs. simple present. Identify parts of sentences. •. Order ... ... using smoker yes/no? Cotinine would avoid misclassification bias of self-report ... To better clarify the concept, the following sentences have been added. Following are some examples. Simple Present. Present Participle. Simple Past Past Participle. Bet. Betting. Bet. Bet. Run. The "-ing" form is used in progressive verb tenses with auxiliary verbs (helping verbs). ... The preposition in the following example sentences is italicized, and ... Complete follow-up in a large simple trial will require innovative methodology since frequent patient contact will not be possible. Cooperation with patient ... Other uses of present continuous. Other uses of present simple. Temporary ... See Grammar 4 for contrasts between past simple and present perfect verb. between present simple, present continuous and present perfect-but use mostly present simple. ... If there is a complete sentence on each side of the ... Dec 25, 2023 ... Can you explain why past perfect continuous is used in the following sentence? ... Why is the present perfect tense used in sentences like "I have ... Fill in the blanks, and click 'Check' to check your answers. Fill in the missing words. Complete the following sentences using present continuous form of verbs ...